United Nations Says 80 Countries May Ramp Up Climate Pledges The countries may increase their climate goals, but the United Nations says that to avert extreme warming, an “exponential increase in ambition” is needed. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Black hole PICTURE release time: What time is the world's first black hole image revealed?Global Health: New York City Is Requiring Vaccinations Against Measles. Can Officials Do That?Ed Westcott, a Singular Eye at the Dawn of the Atomic Age, Dies at 97Brian Cox asked if 'intelligent life' inhabits our universe – his response is SURPRISINGFirst Photo of a Black Hole May Be Revealed. Here’s How to Follow the Announcement.A Night at the Museum With Beer and Skulls