Action is needed to make stagnant carbon dioxide emissions fall, Stanford researcher says

2016 marked the third year in a row when global CO2 emissions remained relatively flat, but actual declines won’t materialize without advances in carbon capture and storage technology and sustained growth in renewables. Without a significant effort to reduce greenhouse gases, including an accelerated deployment of technologies for capturing atmospheric carbon and storing it underground, and sustained growth in renewables such as wind and solar, the world could miss a key global temperature target set by the Paris Agreement and the long-term goal of net-zero climate pollution. The finding, published in the Jan. 30 issue of the journal Nature Climate Change, is part of a new study that aims to track the progress and compare emission pledges of more than 150 nations that signed the Paris Agreement, a 2015 United Nations convention that aims to keep global warming below 2 degrees Celsius of pre-industrial levels — the threshold that scientists have marked as the point of no return for catastrophic warming.