The Conversation: We need to get serious about ‘negative emissions’ technology – fast

„The simple truth is that stabilising the climate will require net emissions to fall to essentially zero, and we are nowhere near close to that. To have a good chance of avoiding the 2°C threshold we’d have to limit the total amount of carbon burnt (over all time) to less than a trillion tonnes. So far we have burnt about 600 billion tonnes and will use up the remainder before 2040. For a 1.5°C limit, we have only 100 billion tonnes of burnable carbon left, which will be used well within the next decade.“