The United States and Brazil issued a joint statement on Tuesday, each committing to bolstering renewables and reducing greenhouse gas emissions. At the same time, China released its own 15-year climate change plan that includes rebuilding forests and cutting carbon output.As the Washington Post points out, those three nations are all top-10 greenhouse gas emitters, making yesterday something of a banner day for the planet's health. And to top it off, South Korea announced a plan to reduce its greenhouse gas emissions by 37% by 2030.
