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Transportation causes around 30% of the greenhouse gas pollution in the United States, and it’s one of the sectors where we have many known technologies to replace our polluting ways.

Such biodegradable waste breaks down to produce methane, a greenhouse gas that is around 28 times more potent than carbon dioxide.

Carbon capture and storage projects, to trap greenhouse gases, include the Acorn Project in Aberdeenshire.

Net zero is the point where no more greenhouse gases are being added to the total in the atmosphere.

The oceans are a crucial buffer against the worst impacts of a warming planet, absorbing excess heat and greenhouse gases, said Callum Roberts, Professor of Marine Conservation at the University of Exeter.