Zenghelis, along with Justin Mundy, adviser to the British government’s Foreign and Commonwealth Office experts’ team on Climate Change, have been touring India this week explaining the Stern Review, considered a comprehensive baseline study by environmentalists and policymakers worldwide.

India and the US, which emits 24% of the world’s carbon dioxide, argue that the Stern Review caps growth.

Britain supports 22 climate change projects in India and provides £1.8m to sustain this, along with another half a million pounds on a ministry of environment and forests climate change programme.

Mundy warned that developing countries could not just rely on foreign investment to mitigate climate change. Domestic investment must be equal, he said.