- Phillies win thriller to level Mets series
- Yu bags first PGA Tour win with playoff win
- PSG held by Nice to leave Monaco clear at top of Ligue 1
- Lewandowski treble for leaders Barca as Atletico held
- Fresh Israeli strikes hit south Beirut
- Sucic stunner earns Real Sociedad draw against Atletico
- PSG draw with Nice, fail to reclaim top spot in Ligue 1
- Gudmundsson downs AC Milan after De Gea's penalty heroics for Fiorentina
- 'Yes' vote prevails in Kazakhstan nuclear plant vote: TV
- 'Difficult day': Oct 7 commemorations begin with festival memorial
- Commemorations begin for anniversary of attack on Israel
- 'Nothing gets in way of team,' says Celtics' MVP hopeful Tatum
- 'We will win!': Mozambique's ruling party confident at final vote rally
- Tunisia voting ends as Saied eyes re-election with critics behind bars
- Florida braces for Milton, FEMA head slams 'dangerous' Helene misinformation
- Postecoglou slams 'unacceptable' Spurs after 'terrible' loss at Brighton
- Marmoush double denies Bayern outright Bundesliga top spot
- Rallies worldwide call for Gaza, Lebanon ceasefire
- New 'Joker' film, a dark musical, tops N.America box office
- Man Utd stalemate keeps Ten Hag in danger, Spurs rocked by Brighton
- Drowned by hurricane, remote N.Carolina towns now struggle for water
- Vikings hold off Jets in London to stay unbeaten
- Ahead of attack anniversary, Netanyahu says: 'We will win'
- West Indies cruise to T20 World Cup win over Scotland
- Man Utd fire another blank in Aston Villa stalemate
- Lewandowski treble powers Liga leaders Barca to Alaves victory
- Russian activist killed on front line in Ukraine
- Openda strike briefly sends Leipzig top of Bundesliga
- Goal-shy Man Utd have to 'step up', says Ten Hag
- India bowl out Bangladesh for 127 in T20 opener
- Madueke rescues Chelsea in draw with 10-man Forest
- Beckett's belief rewarded as Bluestocking storms to Arc glory
- Trump on the stump, Harris hits airwaves in razor-edge US election
- Flash flooding kills three in northern Thailand
- Kaur leads India to victory over Pakistan in Women's T20 World Cup
- Juventus held by Cagliari after late penalty drama
- In France's Marseille, teen 'stabbed 50 times' then burned alive
- Ruthless Gauff beats Muchova in straight sets to win China Open
- India restrict Pakistan to 105-8 in Women's T20 World Cup
- England target repeat of Pakistan Test whitewash
- Penrith Panthers win fourth straight NRL title after downing Storm
- Weary Sinner happy for day off after battling into Shanghai last 16
- Pakistan's Masood warns England still a force without Stokes
- Madrid's Carvajal to miss several months after serious knee injury
- Two elephants die in flash flooding in northern Thailand
- Sabalenka targets world number one and Wuhan hat-trick
- Tunisia votes with Saied set for re-election
- Bagnaia sets 'example' with Japan MotoGP win to cut gap on Martin
- Intense Israeli bombing rocks Beirut ahead of war anniversary
- Mozambique vote: no suspense but some disillusion
Slash airline emissions to meet Paris targets: report
The world needs "early, aggressive and sustained" government intervention to cut aviation emissions if Paris Agreement temperature goals are to be met, a think tank said Thursday.
Airlines must start to slash emissions before the end of the decade and by 2025 if possible, said the International Council on Clean Transportation (ICCT) in a new report.
The 2015 Paris climate treaty enjoins nations to cap global warming at "well below" two degrees Celsius, and 1.5C if possible.
Earth's average surface temperature has already risen 1.2C above preindustrial levels.
To project aviation sector emissions, the ICCT ran three models assuming different levels of traffic, fuel efficiency and other factors.
All of them improved on a baseline "business-as-usual" scenario, which would emit nearly 50 billion tonnes of CO2 by mid-century -- more than annual emissions from all sources today.
The most optimistic model -- which assumes "widespread investments in zero-carbon aircraft and fuels, peaking fossil fuel use in 2025, and zeroing it out by 2050" -- would see a reduction of 22.5 billion tonnes of emissions by 2050.
That would put aviation on course to cut greenhouse gas emissions by "an amount consistent with a 1.75C warming", said the ICCT.
"But it would require aggressive policies to peak emissions by 2030 at the very latest."
These findings were more positive than anticipated but remain very ambitious, commented lead author Brandon Graver.
"The all-in strategy to deploy clean planes and fuels cuts emissions even deeper than we expected," he said.
"But public policies will be needed to peak emissions as early as 2025 to put aviation on a 1.75°C pathway."
IATA, which represents 290 airlines accounting for 83 percent of global air traffic, pledged last October to achieve net-zero carbon emissions by 2050.
The aviation industry is among the fastest-growing sources of greenhouse gases, and one of the most difficult sectors to decarbonise.
Many experts are counting on innovations in hydrogen fuels or so-called sustainable air fuels (SAF) made from non-fossil fuel renewable source to meet industry targets.
Improvements in operational efficiency also hold potential for reducing the sector's carbon pollution.
The International Air Transport Association (IATA) has put the cost of such improvements at $1.55 trillion over 30 years.
IATA projects continued growth in air travel.
The industry expects to carry 10 billion passengers by the middle of the century, more than double the 4.5 billion in 2019, the most recent full year unaffected by the Covid pandemic.
A.F.Rosado--PC