Theresa May pledges to make UK aid spending more eco-friendly

Prime minister will tell G20 leaders they are last generation that can limit global warming

Theresa May is to pledge that Britain's aid budget will in future be spent in a more environmentally sustainable way and tell her G20 counterparts: "We are the last generation of leaders with the power to limit global warming."

The prime minister has been keen to burnish her green credentials as she enters in her final days in office. Fresh from announcing a new target of net zero carbon emissions by 2050 - in the face of scepticism from the chancellor, Philip Hammond - May will lead a session on the climate emergency at the summit in Japan.