Space pioneer: Earth needs climate 'reality check'

World / Science & Health Dec 5, 2018

Space pioneer: Earth needs climate 'reality check'

The world needs a "reality check" on the threat posed by climate change, NASA astronaut Mae Jemison said Tuesday at a U.N. summit to chart mankind's path away from runaway global warming. Jemison, the first African-American woman in space, brought a little galactic perspective to ...

Scientists warn that natural systems could accelerate climate change

World Aug 10, 2018

Scientists warn that natural systems could accelerate climate change

Even if humanity slashes greenhouse gas emissions in line with Paris climate treaty goals, the planet could overwhelm such efforts and irretrievably tip into a hellish "hothouse" state, top scientists warn. Under such a scenario, Earth's average temperature would stabilize at 4 or 5 degrees ...