Capturing CO2 from Air: To Keep Global Warming Under 1.5°C, Emissions Must Go Negative, IPCC Says By Sabrina Shankman
Keeping Global Warming to 1.5 Degrees Means Reducing Short-Lived Climate Pollutants, Too By Phil McKenna
In Shadow of Trump's New Foreign Policy Team, Climate Negotiators Walk a Fine Line By Marianne Lavelle