A Labour government would introduce an earlier net-zero carbon emissions deadline than the current 2050 target under plans being considered by the party leadership, according to shadow chancellor John McDonnell.
In an interview with the Financial Times, Mr McDonnell said he was talking to experts about whether it would be possible to hit the target as early as 2030, as demanded by many leftwingactivists.
Theresa May on Wednesday sought Parliament’s assent to legislate for the 2050 target, as recommended by the official Committee on Climate Change.
“Net zero” means that any greenhouse gas emissions would be balanced by schemes to offset carbon from the atmosphere, such as planting trees or using carbon capture and storage schemes.
The 2050 target was the subject of a political row last week when Philip Hammond, chancellor, said that fulfilling the pledge would cost £1tn and lead to public spending cuts, a claim rejected by Downing Street.
Now Labour is under pressure from activists to adopt a much tougher target than the Conservative government.