As countries formalize their climate action plans, some are shifting to more stringent targets, increasing transparency, and reflecting recent developments in knowledge and technology. Some countries, however, have lowered their ambition or made tweaks that make their commitment less clear.
One ambitious goal of the Paris Agreement is for countries to peak emissions -- reach the point when global heat-trapping emissions switch from increasing to decreasing -- as soon as possible. A new WRI paper shows that 57 countries, representing 60 percent of all global emissions, are likely to peak emissions by 2030.
The Science-Based Targets initiative to cut corporate greenhouse gas emissions has met and exceeded its first goal, with more than 165 companies committed to use the best climate science to inform their carbon reduction decisions. SBTs are succeeding because they take the guesswork out of the process of shrinking businesses' carbon footprints.
China's cities have a critical role to play in addressing climate change, but some huge metropolitan areas like Chengdu hadn't focused on reducing greenhouse gas emissions. That changed today as Chengdu and other Chinese cities and provinces committed to have their emissions peak by or before 2030 and decline after that.
More than 150 companies have committed to align their emissions-reduction goals with what the science says is necessary to limit temperature rise to 2 degrees C (3.6 degrees F). Here's what some pioneering corporations are saying about setting science-based emissions targets.