US is the world's biggest polluter in history: Dr Arunabha Ghosh

On a cumulative basis, the US is the biggest polluter of the last two centuries, followed by European nations and then China, climate expert Dr Arunabha Ghosh said on the podcast. India's share is under 5%. "If you burst crackers near my house and it burns down, you must take responsibility," he said, calling it a moral problem.