8. Almost no time left to avoid 1,5 degrees temperature increase
It will take just six years of current emissions to exhaust a carbon budget that would give a good chance of keeping global warming below 1.5 degrees Celsius, based on figures from the Intergovernmental Panel on Climate Change (IPCC).
Because most consider it impossible to drastically cut CO2
-emissions in such a short time, current scenarios that do keep temperature rise below 1.5 degrees assume application of negative emissions technologies to help offset emissions from human activities. These technologies, such as bioenergy with carbon capture and storage (BECCS), remove CO2
from the atmosphere and store it on land, underground or in the oceans. However serious questions still remain over the feasibility of large-scale application of these technologies.
Text and picture: Nasa and CarbonBrief