Threats that could wipe out the bulk of life on earth abound. Planetary catastrophe could come in the form of a killer asteroid impact, the eruption of massive supervolcanoes, a nearby gamma ray burst that sterilizes the earth, or by human-driven environmental collapse.Yet life will endure, says Annalee Newitz, and so will humanity.
This is part two of a two-part series on the limits of human economic growth on planet Earth. Part one details some of the environmental and natural resource challenges we’re up against.
This is part one of a two-part series on the limits of human economic growth on planet Earth. Part one details some of the environmental and natural resource challenges we’re up against.
On September 19 th , NSIDC, the National Snow and Ice Data Center, announced that Arctic sea ice has shrunk as far as it will shrink this summer, and that the ice is beginning to reform, expanding the floating ice cap that covers the North Pole and the seas around it.
In 2011, the world will emit more than 35 billion tons of carbon dioxide. Every day of the year, almost a hundred million tons will be released into the atmosphere.
The sun strikes every square meter of our planet with more than 1,360 watts of power. Half of that energy is absorbed by the atmosphere or reflected back into space.
