Qual é o sentido que faz deslocarmo-nos para aeroportos de
comboio, automóveis eléctricos ou mesmo de bicicleta eléctrica, se a pegada de
carbono da aviação é gigantesca e não para de aumentar !?
OVOODOCORVO dedica atenção a esta urgentíssima questão que
começa, embora muito tímidamente, a ser discutida em Bruxelas.
Ler os três artigos em baixo … https://www.facebook.com/O-Voo-do-Corvo-Blogspot-465825430137758/?ref=bookmarks
“Aviation accounts for about 2.5 percent of global CO2
emissions, and grew by 5 percent last year. But the sector has largely been
left out of global efforts to rein in
rising greenhouse gas emissions.
Commercial flights now account for 2.5 percent of global
carbon dioxide emissions. The Air Transit Action Group (ATAG), an industry
lobby, claims commercial aircraft coughed out 859 million tons of CO2 in 2017,
out of about 40 billion tons emitted globally. Air travel’s slice of global
carbon emissions is expected to rise through 2050, as sectors like energy make
faster transitions to greener technology.
Meanwhile, demand for flights has never been higher.
Airline emissions are not covered by the landmark 2015 Paris
climate accord. The schemes that do try to address the industry largely aim at
keeping aviation emissions flat, even as emissions from other parts of the
economy — power stations, manufacturing industries, cars — are required to cut
back. This means that the sector’s
emissions will make up an ever larger share of global emissions.”
The popular revolt against flying
Flying has gone from glamorous to scandalous, and the
industry is scrambling to prop up its fading popularity.
By SAIM SAEED 6/11/19, 5:18 PM CET Updated 6/14/19,
4:04 AM CET
Illustration by Carlo Giambarresi for POLITICO
Europe’s airlines have a new problem — their customers.
Decades ago flying was reserved for the glamorous few, then
it became a mass market for cheap tourism. Now the aviation industry is in
danger of joining the ranks of cigarette makers and plastics producers in the
business hall of shame.
That’s due to something most passengers ignored until only a
few years ago — the industry’s growing carbon footprint. But now it’s a problem
in a world where worry over global warming is shooting to the top of political
and social concerns.
Across Europe, campaigns to reduce air travel emissions are
gaining traction. The sources of the criticism vary widely. In Sweden, where
climate activist Greta Thunberg’s decision to abstain from flying has pushed
the issue into the spotlight. In France, where Yellow Jacket protesters have
called for taxing airline fuel instead of their cars’ gasoline.
“In the future, I expect the aviation industry’s license for
growth to be linked directly to perceptions of sustainability” — Violeta Bulc,
European commissioner for transport
“A kind of top-down-bottom-up fight is brewing,” said Annie
Petsonk, international counsel for the Environmental Defense Fund. “And I’m not
sure how it will play out.”
So far it’s more hot air than action. Aside from what may be
a temporary blip in Swedish air travel, people may be talking a good game when
it comes to aviation and climate change, but continued growth in most markets
shows they haven’t yet given up on flying.
But politicians — traditionally airline industry boosters —
have noticed the change in attitude.
“In the future, I
expect the aviation industry’s license for growth to be linked directly to
perceptions of sustainability,” European Commissioner for Transport Violeta
Bulc told airline CEOs at a summit in Korea earlier this month.
A succession of European governments — left and right alike
— are mulling aviation taxes, an end to traditionally heavy subsidies, and are
reconsidering airport expansion plans.
Airlines are on the defensive. Even as they look forward to
transporting ever more passengers — with airlines like Ryanair posting
double-digit growth in traffic — carriers worry that the protests could prompt
government intervention and jeopardize those projections.
The Swedes have a word for it
Swedes have a word — flygskam, or flight shame — for the
guilty feeling of boarding a plane, knowing the flight damages the environment.
“Unchallenged, this sentiment will grow and spread,”
Alexandre de Juniac, chief of global airline lobby International Air Transport
Association (IATA), told the Korean summit. “Along with reducing emissions, we
must collectively engage and tell our story more effectively.”
Ryanair, the Continent’s second-largest airline, is already
feeling the hot breath of climate campaigners on its back. A ranking by NGO
Transport & Environment puts the airline as one of the top 10 polluters in
Europe, in the company of nine coal-fired power plants.
In reaction, Ryanair is now publishing monthly figures on
its carbon dioxide emissions — the first European airline to do so. Ryanair’s
pitch aims to combat flight shame, arguing that its passengers average less
emissions per kilometer compared to the airline’s peers given the company’s
efficient fleet.
According to the NGO Transport and Environment, Ryanair is
one of the top 10 polluters in Europe | Toms Kalnins/EPA
“Ryanair is Europe’s greenest/cleanest airline,” Ryanair’s
chief marketing officer, Kenny Jacobs, said in a statement.
For now, the first country to feel the sting of flight
shaming is Sweden, where the aviation industry contracted by 5 percent so far
this year — a change blamed in part on shifting attitudes toward flying.
Swedish climate activist Greta Thunberg has made airplane
pollution a focus of her widely-publicized, youth-led campaign, traveling only
by rail during her barnstorm of Europe, a habit she encourages others to copy.
Online, hashtag campaigns like #jagstannarpåmarken and #tagskryt, and their English versions
#stayontheground and #trainbragging, are growing on Twitter and Instagram.
But it may be a blip. A forecast by Eurocontrol sees
Sweden’s air traffic rising by 1.9 percent this year and by 2 percent in 2020.
Policymakers change tack
The industry’s PR effort may not be enough to dissuade
politicians from taking a harder look at how aviation is taxed. In March, the
Belgian government backed a Dutch proposal for an EU-wide tax on aviation.
“It’s not sustainable that we fly for a weekend with some
friends all around Europe when we could do it with the train,” said Dutch
Secretary of State for Finance Menno Snel.
Clamor for an aviation tax has spread to the European
Parliament; all major candidates for the European Commission presidency pledged
support for the idea.
“The privileging of the airline business must be stopped,”
center-right European People’s Party candidate Manfred Weber said during a
campaign debate in May.
“Why is there still no tax on kerosene?” Socialist lead
candidate Frans Timmermans asked in another pre-election debate. “That’s
crazy.”
“The #ClimateEmergency places a responsibility on us to cut
emissions faster" — Nicola Sturgeon, Scottish first minister
And even if politicians balk at making airlines pay more,
citizens could force their hand. In April, the Commission registered a European
Citizens’ Initiative for an EU-wide aviation tax. It needs 1 million signatures
by May 2020 to compel the Commission to act.
That pressure is already visible in France. The Yellow
Jackets, who have vehemently protested the French government’s proposed hike on
petrol claiming it unfairly targets the working class, have decried the lack of
taxes on jet fuel and no VAT on air tickets. They, too, have called for an
aviation tax.
Pais has noticed. French President Emmanuel Macron began his
tenure promising to make its aviation industry more competitive. Last year, the
government cut the air tax from €1.30 to 90 cents per ticket. But the protests
have forced a change in tone.
“I want to warn you,” Transport Minister Elisabeth Borne
told French aviation industry officials in March, “what is being expressed in
this country [are calls] not to support the competitiveness of air transport.”
France backs the EU-wide air tax, and Macron’s party campaigned for it during
the European election.
A similar shift is taking place in Scotland, where First
Minister Nicola Sturgeon reversed her government’s pledge to cut the Air
Departure Tax — the U.K.’s ticket tax — as a response to what she called was a
“climate emergency.”
“The #ClimateEmergency places a responsibility on us to cut
emissions faster,” Sturgeon said.
The Scottish government is also reconsidering its support
for a new runway for Heathrow airport — part of a broader international rethink
on the need to upgrade airport infrastructure.
Many airlines believe the tax proposal will hurt them. They
“increase the cost of travel and reduce connectivity,” argues Airlines For
Europe, the lobby representing Europe’s largest air carriers.
Some public officials agree. “Tax is punishment,” said
Henrik Hololei, director general of the Commission’s Mobility and Transport
department. An air tax “will not lower emissions in the long run.”
Smoggy skies
Aviation’s carbon footprint has grown by 20 percent in
Europe since 2005, and continues to increase at an average of 4 percent
annually. It currently accounts for about 2.5 percent of the world’s greenhouse
gas emissions. If it were a country, aviation would be the sixth-largest carbon
polluter in the world, eclipsing Germany.
Both the industry and policymakers are aware of the need to
do something. IATA has pledged to cut emissions to 50 percent of their 2005
level by 2050.
Flights within the EU are already part of the bloc’s
Emissions Trading System, a mechanism by which emissions are capped and carbon
allowances are traded among companies. And while the program has slowed the
rise in aviation emissions, it hasn’t stopped that growth, and efforts to make
it apply to non-EU flights have failed.
The U.N.’s International Civil Aviation Organization is
finalizing a worldwide scheme called Corsia to curb emissions, which would cap
emissions at 2020 levels and require airlines to pay for programs to remove any
additional emissions over that level from the atmosphere. But there are complaints
it isn’t as stringent as the ETS, and participation until 2026 is voluntary.
“Growth for the sake of growth cannot be an objective in
itself. Aviation has externalities that cannot be overlooked" — Violeta
Bulc
In the face of surging demand, those regulatory efforts are
unlikely to choke off emissions growth.
There is also no technological rescue on the horizon.
While today’s airplanes are significantly more efficient
than in the past — using 24 percent less fuel than in 2005, according to a European
Aviation Safety Agency report — overall emissions from European aviation have
risen by 16 percent over the same period. The culprit? A 60 percent increase in
passenger kilometers flown.
“Growth for the sake of growth cannot be an objective in
itself,” Bulc wrote in the report. “Aviation has externalities that cannot be
overlooked.”
Ideas like alternative fuels, electric engines and radical
airplane redesigns are far in the future.
Fear of flying
That leaves one sure way of cutting aviation emissions —
flying less. It’s an idea that keeps aviation industry executives up at night.
Airbus Chief Technology Officer Grazia Vittadini argued that
people still need to travel. “We’re working hard on teleportation but it hasn’t
happened yet,” she said at an event in Brussels in April. She pointed to the
high demand for new airplanes, with Airbus’ projections showing at least 37,000
additional airplanes will take to the skies by 2040.
In an effort to undercut the appeal of flight shaming,
Vittadini argued that less flying would impact world peace. “Connecting people
is something which should not be underestimated. When it comes to awareness of
each other’s differences, to have a world that is more inclusive and open,” she
said. “I would not want to take that away.”
But Sweden excepted, the protests have so far not translated
into emptier airports. Ryanair’s traffic numbers for May grew by 13 percent
year-on-year. For April, Lufthansa’s grew by 3 percent and Air France-KLM by 9
percent. On average, Europe’s air traffic grew by 3 percent last year, and by 2
percent so far this year.
“Talk about mixed messages,” said aviation consultant Andrew
Charlton.
This article is part of a special report called Aviation's
Climate Challenge.
EU takes aim at global airline emissions pact
One MEP denounces the carbon reduction scheme as ‘an
absolute joke.’
By KALINA
OROSCHAKOFF 6/13/19, 6:00 AM CET Updated
6/14/19, 4:04 AM CET
Could a global effort to rein in the airline industry’s
greenhouse gas emissions undermine the EU’s fight against climate change?
That’s what regulators in Brussels worry could happen as the
United Nations takes on one of the fastest growing causes of global warming.
At issue is the so-called Carbon Offsetting and Reduction
Scheme for International Aviation (Corsia), which would require airlines to buy
into forest-planting schemes or other efforts to suck carbon dioxide from the
atmosphere if they pollute more than they are currently doing.
Some EU officials say the approach proposed by the U.N.’s
International Civil Aviation Organization is not transparent enough, vulnerable
to fraud and miscounting, and in any case doesn’t go nearly far enough.
Worse, it could derail the EU’s own efforts to force the
industry to cut its greenhouse gas emissions.
“It’s the most important fight we have to fight
internationally” — Peter Liese, EPP environmental coordinator
“We can no longer rely on offsetting to deliver long-term
climate goals,” Mauro Petriccione, the European Commission’s top civil servant
working on climate change, said at a conference on international carbon
markets. “The use of international carbon markets needs to reflect ambition. We
cannot remain stuck in the past.”
Green skies ahead
Aviation accounts for about 2.5 percent of global CO2
emissions, and grew by 5 percent last year. But the sector has largely been
left out of global efforts to rein in
rising greenhouse gas emissions.
Airline emissions are not covered by the landmark 2015 Paris
climate accord. The schemes that do try to address the industry largely aim at
keeping aviation emissions flat, even as emissions from other parts of the
economy — power stations, manufacturing industries, cars — are required to cut
back. This means that the sector’s
emissions will make up an ever larger share of global emissions.
The one place where the industry is required to cut back is
in the EU. Since 2012, airlines flying within the European Economic Area are
forced to buy permits covering 15 percent of the sector’s emissions under the
Emissions Trading System — a bloc-wide carbon market. The EU has sought to
expand the scheme to include international flights, but the effort was rebuffed
in 2012 by major powers such as the United States and China.
Free emissions allowances are “effectively a fossil fuel
subsidy,” said Bill Hemmings, director of aviation and shipping with the NGO
Transport & Environment.
Far from wanting to lighten these regulations, the political
winds, as evidenced by last month’s European Parliament election, are blowing
toward holding the industry to higher standards.
“It’s the most important fight we have to fight
internationally,” said Peter Liese, the environmental coordinator for the
European People’s Party, the parliament’s biggest group.
By 2024, the EU will also have to review whether to include
international aviation in the ETS. European lawmakers are already gearing up to
tighten the screws on airlines.
Leading environmental MEPs such as the EPP’s Liese now want
to boost the number of emission allowances carriers have to buy from 15 percent
to as much as 100 percent.
Free emissions allowances are “effectively a fossil fuel
subsidy,” said Bill Hemmings, director of aviation and shipping with the NGO
Transport & Environment. “Why should
the ETS provide a fossil fuel subsidy to the aviation sector? … It’s perverse
that they don’t have to pay.”
‘Hot air’
Corsia, by contrast, takes a much lighter approach.
The scheme would cap airline emissions at an average of 2019
and 2020 levels, and by 2027 carriers emitting more than that would have to buy
carbon offsets — although it’s still unclear who they’d buy those offsets from
and who would regulate such a global program.
Corsia is backed by the aviation industry, which is keen on
a global market-based measure that would avoid having to comply with a tangle
of regional schemes. But the plan hasn’t found much favor among environmental
activists or many European politicians.
The concern among EU climate officials and environmental
campaigners is that Corsia will be full of loopholes.
That includes double-counting emissions savings, worries
over whether regulators will stick to offsetting standards, and poor compliance
rules. Another issue is whether the system will allow the sector to use surplus
emission permits created under the 1992 Kyoto Protocol, the Paris Agreement’s
precursor.
European Commissioner for Energy and Climate Miguel Arias
Cañete warned last week that continued use of “substantial” amounts of Kyoto
emission permits in global carbon market schemes “will reduce ambition or at
least defer action for many years.”
There are also questions over the effectiveness of Corsia,
which will be voluntary until 2027, and whether major polluters will opt in
from the start. Signals suggesting China won’t join the voluntary phase has EU
officials worried this could undermine the case for the U.S. to comply and
leave Europe saddled with more onerous obligations than its rivals.
The European Commission has to make an assessment on whether
Corsia is robust enough, once it’s started, to allay the bloc’s environmental
concerns, and how the EU should apply it domestically.
“If Corsia is not more than a fig leaf, there will be lots
of voices, not least in the Parliament, to say, ‘No, let’s not count it,” said
a long-standing EU observer who was involved in aviation measures.
“Politically, we back the scheme but we always left open that it should be
meaningful.”
Some have already made up their mind.
“Corsia — that’s an absolute joke,” said Liese, adding the
scheme doesn’t require emission reductions from the industry. “It’s just hot
air.”
This article is part of a special report called Aviation's
Climate Challenge.
Authors:
Kalina Oroschakoff
No quick fix for growth of aviation emissions
Battery-powered planes and alternative fuels are unlikely to
allow the industry to go green.
By JOSHUA
POSANER 6/12/19, 1:30 PM CET
Updated 6/14/19, 4:04 AM CET
Visitors watch a phototype of Lilium's eVTOL (electric
vertical take-off and landing) Jet at a trade fair in Nuremberg, Germany on
December 4, 2018 | Christof Strache/AFP via Getty Images
Every day, millions of people take hybrid cars,
zero-emission trains, even bicycles to an airport — only to board planes
burning tons of fossil fuels.
Commercial flights now account for 2.5 percent of global
carbon dioxide emissions. The Air Transit Action Group (ATAG), an industry
lobby, claims commercial aircraft coughed out 859 million tons of CO2 in 2017,
out of about 40 billion tons emitted globally. Air travel’s slice of global
carbon emissions is expected to rise through 2050, as sectors like energy make
faster transitions to greener technology.
Meanwhile, demand for flights has never been higher.
“Demand for air travel increases at twice the pace of the
economy,” Airbus’ chief technology officer, Grazia Vittadini, told reporters
last month. “That means that the global commercial aircraft fleet doubles
roughly every 15 to 20 years.” In 2017, the number people who traveled by air
passed 4 billion.
“Evidence is strong that aircraft manufacturers are
currently deploying only about half of the available technologies to reduce the
fuel burn of new aircraft” — Dan Rutherford, who leads research on aviation at
the International Council on Clean Transportation in San Francisco
But white-coated scientists won’t be riding to the
industry’s rescue anytime soon; stringent safety rules and the slow lifecycle
of airplanes make tech fixes much more difficult to implement than in power
stations and cars, where mistakes don’t mean falling out of the sky. Prospects
for battery-powered planes and more efficient, self-guided aircraft are years
away. Alternative fuels have barely gained a foothold with airlines.
Here are five technology obstacles facing the air travel
industry as it tries to clean up its planes.
Batteries are too heavy
A zero-emission passenger jet would likely run on
electricity from batteries. Unfortunately, batteries capable of producing as
much energy as a similar load of kerosene — a feather-light fossil fuel that
stores enormous amounts of power and is widely used in aviation — is still many
years away.
“It will be a very long time before batteries offer anything
like the energy density found in fuels,” said Richard Aboulafia, who leads
research at Teal Group, a consultancy. “It would take many decades of progress
to change that, and we might never get there.”
That hasn’t dissuaded some from making ambitious promises.
Lilium, a Munich-based start-up, says it can get small electric urban aircraft
flying 300 kilometers on a single charge by 2025, drawing on the same batteries
as a standard family vehicle. Boeing is pushing a similar prototype, pending
certification and commercial trials. Norway, already a leader in e-cars, wants
all domestic flights to be electric by 2040. The Norwegian government hasn’t
explained how it intends to do that.
Battery power is tougher still for long-haul flights — but
essential to lowering emissions. About 80 percent of aviation emissions are
produced by flights longer than 1,500 kilometers, according to ATAG.
A battery able to hold 30 times as much electricity for the
same weight as today’s batteries would still only allow a passenger jet like
Airbus’ A320 to reach a fifth of its usual range, carrying just half its usual
payload of passengers and luggage, said Airbus’ Vittadini.
“The physics just won’t work,” she said. “Pure electrical
propulsion will probably not be enough in the short term.”
Alt-fuels don’t scale
Without batteries, the search for a cleaner substitute for
kerosene would seem like a good transitional step. But no one’s produced a
reliable, affordable alternative fuel yet.
“Current use [of alternative fuels] is well below 0.1
percent of global jet fuel, or about one one-hundredth of what some were
predicting by this time,” said Dan Rutherford, who leads research on aviation
at the International Council on Clean Transportation in San Francisco.
Cost is a concern. Cleaner burning fuels, like those made
from isobutanol, typically cost up to five times more than kerosene, he said.
The other problem is the small supply of so-called boutique
fuels. Currently, aviation burns an
estimated 5 million barrels of jet fuel each day. Any new fuel would have to
replace that capacity, quickly.
Fuel experiments are still very small scale; Lufthansa is
promising to use synthetic kerosene for 5 percent of the fuel it uses at
Hamburg airport over the next five years.
“Getting enough sustainable aviation fuels flowing to
significantly reduce emissions before 2030 seems unlikely,” said Rutherford.
Ticket prices can’t rise
Rutherford thinks online flight booking platforms such as
Kayak and Google Flights should do more to illustrate emission output estimates
between different flights, helping to nudge airlines to do more on aircraft
efficiency or face a consumer backlash.
Some airlines have long given bookers the option of
offsetting their CO2 emissions, but the voluntary offset market is still very
small.
Oliver Aust, a former easyJet executive who now runs a
Berlin aerospace consultancy, says airlines have been experimenting with
offsetting for a decade. “Unfortunately very few passengers make use of it,“ he
said.
Either way, consumers will likely need to shoulder more of
the climate cost than they’d like — and perhaps more than they can. Research by
green group Transport & Environment estimates that switching from kerosene
to low carbon alternatives would add 58 percent onto the price of a standard
ticket. If conventional fuel were subject to tax, the rise would be 23 percent.
Incremental improvements
Instead of a silver bullet solution, airplane manufacturers
will have to look for ways to combine tiny design changes that add up to big
savings. That’s a longer, more evolutionary process than betting on a single
breakthrough in battery or fuel tech.
“There is no single technology that will enable us to
achieve these ambitious targets,” said Vittadini of Airbus’ objective to cut
emissions. “It will be more a concurrent, coherent development of several
technologies.”
For example, introducing laminar wing design, a wing-shape
innovation developed by an EU/Airbus project called BLADE, could cut CO2 output
by 5 percent by providing greater lift. It’s at prototype stage.
Not everyone is buying the insistence that the industry is
making the supersonic progress it claims.
Vittadini said Airbus is using materials as unlikely as
algae and spider silk to make materials lighter and more aerodynamic. Another
area of study, “biomimicry,” would copy natural patterns to automate flights,
allowing swarms of aircraft to “surf each others vortexes,” reducing drag.
These kind of innovations are a long way from the marketplace, however.
An estimated tenth of aviation emissions are caused by jets
just circling above hub airports waiting for a slot to land, so using computers
to automate landing patterns could offer another opportunity for shorter flight
paths and emission savings.
Satellites can also help plot more effective flight paths,
but new systems for airspace management are stuck in a Brussels legislative
standoff, owing to a spat over sovereignty and jurisdiction of the Gibraltar
airport.
The problem with those ideas is that the rapid growth in
flying drowns out small improvements, and despite better technology aviation
emissions continue to rise.
We may have to learn to trust robots
Aust, the former easyJet executive, thinks the industry is
doing its fair share on climate and notes that Airbus — which has just
undergone a management change — is focusing its resources on sustainability,
with a deal just signed to work on developing hybrid aircraft with Scandinavian
airline SAS.
But not everyone is buying the insistence that the industry
is making the supersonic progress it claims. “Evidence is strong that aircraft
manufacturers are currently deploying only about half of the available
technologies to reduce the fuel burn of new aircraft,” said Rutherford.
Then there are the passengers, who will have to accept
fundamental changes to a decades-old means of travel. Convincing the public to
pay 50 percent more for a ticket to ride on a battery-operated drone made of
algae-based plastic and spiderweb glue, “swarming” over the Atlantic to save
drag, could be challenging.
Regulators will also need convincing. This year’s grounding
of the Boeing 737 MAX after two fatal accidents shows that safety agencies are
unlikely to be enthusiasts for experimental technologies.
Currently, six out of seven Germans say they would feel
uncomfortable flying on an autonomous plane, according to a recent study by
German digital industry lobby Bitkom.
One in seven may think it’s going to be awesome, however.
This article is part of a special report called Aviation's
Climate Challenge.
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