The Climate Change Committee, which advises the government, has written to Ed Miliband, the energy secretary, to demand cuts of 81% in UK emissions, compared with 1990 levels, by 2035, if emissions from aviation and shipping are excluded.
Miliband must now decide whether or not to follow the committee's advice in setting Britain's new international commitment under the Paris agreement at a forthcoming UN climate summit.
A cut of 81% as an international target would be broadly in line with Britain's existing domestic carbon budgets for the 2030s, which are also set with advice from the CCC, and which are intended to deliver net zero emissions by 2050.
But campaigners urged the government to go further in order to demonstrate global leadership and spur innovation and a low-carbon economy. Mike Childs, head of policy at Friends of the Earth, said: "With climate change spiralling dangerously out of control, the recommended 81% cut should be seen as the very minimum carbon reduction target the UK government should commit to. Ramping up ambition to make even deeper cuts in practice would show real leadership in global efforts to avert the worst of climate breakdown."
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Marler exited England camp before his call to scrap haka
Joe Marler left the England camp preparing for the autumn internationals opener, against the All Blacks on Saturday, for personal reasons at the start of the week before provoking a fierce backlash in New Zealand by calling for the haka to be scrapped.
Stokes family's ordeal Captain reveals masked gang burgled home while on tour
Ben Stokes, the England Test captain, has said his house was burgled this month while his wife and two children were present and he was away on the tour of Pakistan.
Fifa in dispute with Adidas and Coke over Club World Cup
Fifa is in dispute with its long-term partners Adidas and Coca-Cola over sponsorship rights for the Club World Cup next year in the US.
Werner and Sarr strike early as rapid Spurs catch City by surprise
Tottenham had threatened to win at a canter. Two goals up after 25 minutes, there was almost disbelief within the home crowd and not only because Timo Werner had scored the first.
Isak makes Maresca pay for shuffling Chelsea's pack
Hope is alive and kicking at Newcastle after all. Just as Eddie Howe's players seemed to be sliding towards mediocrity, a place in the Carabao Cup's last eight changed an entire narrative.
Gakpo double keeps Liverpool on course for trophy defence
The Arne Slot roadshow continues to impress. Cody Gakpo's quickfire double helped the Liverpool manager make it seven wins from his first eight away matches in all competitions as the holders moved into the quarterfinals despite making wholesale changes on the south coast.
United shake off Ten Hag's reign with five-star Victory
Ruud van Nistelrooy may never lead Manchester United in cup competition again, so ending on the right end of a 5-2 goal fest as the interim manager can warm in his dotage.
Nwaneri delivers again as Arsenal showcase top-flight dominance
Arsenal had a European Championship winner on parade in Jorginho, the Champions League-winning Kai Havertz and the four-time Premier League champion Raheem Sterling making life a misery for Preston, but one name rang out above all from the away end at Deepdale: Ethan Nwaneri.
Kamada gives Palace win but Eze limps off injured
Just as reports started surfacing that Oliver Glasner had until the approaching international break to safeguard a job he started so brilliantly only eight months ago, so Crystal Palace go and win successive games.
Draper rolls into last 16 by taking down world No 6
The two previous times Jack Draper and Taylor Fritz faced each other this year, their encounters ended in similar ways.