Cop26 meeting is last chance, says Alok Sharma as he backs UK’s plan for new oil and gas fields.-“This is going to be the starkest warning yet that human behaviour is alarmingly accelerating global warming and this is why Cop26 has to be the moment we get this right. We can’t afford to wait two years, five years, 10 years – this is the moment,” Sharma warned, in his first major interview since taking charge of the climate talks.