The recent announcement by climate watchers that carbon dioxide level in the atmosphere has crossed a psychologically significant barrier of 400 parts per million raised all the intended alarm bells world over. In a field which has been continually consuming a lot of public attention, and where the ...
For two decades, the world’s governments have failed to meet their own commitment to reduce emissions of carbon dioxide, the main heat-trapping gas. As frustration builds among scientists, some of them have begun to argue for research on a potential last-ditch option in case global warming starts to...