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New ships will have to meet internationally agreed carbon dioxide emission standards, thanks to a deal agreed in London last week. But only from 2019. And there are no plans to extend the rules to existing ships.

What is carbon capture and storage? The technology is designed to prevent the carbon dioxide exhaust from the burning of coal and gas from entering the atmosphere and driving further climate change. It does this by either stripping the CO2 from the smokestacks of conventional power stations, or by burning the fuel in special ways to produce exhausts of pure CO2.

A scientific conundrum that has puzzled climate experts for years may have been solved with the publication of research showing how an increase in carbon dioxide levels in the atmosphere contributed to rising temperatures millions of years ago.

As the world's oceans warm, their massive stores of dissolved carbon dioxide may be quick to bubble back out into the atmosphere and amplify the greenhouse effect, according to a new study.

Monitoring stations in the Arctic detect record levels of carbon dioxide, higher than ever above 'safe' 350ppm mark The world's air has reached what scientists call a troubling new milestone for carbon dioxide, the main global warming pollutant. Monitoring stations across the Arctic this spring are measuring more than 400 parts per million of the heat-trapping gas in the atmosphere.