In April of this year, the Mauna Loa Observatory in Hawaii recorded its first-ever carbon dioxide reading over 410 parts per million (ppm). This is a brand-new state of affairs, as humans have never existed on Earth with CO2 levels over 300 ppm. If carbon emissions continue their current trend, our atmosphere could get to a point it hasn’t been at in 50 million years—when temperatures were 18°F (10°C) higher and there was almost no ice on the planet (meaning there was a lot more water and a lot less land).
There’s long been a consensus between multiple countries to try to limit the temperature change from global warming to two degrees Celsius. This is critical for many reasons, not least the effect hotter temperatures will have (and have already had) on food production.
But author and activist Paul Hawken says two degrees isn’t enough—not nearly enough, in fact. In a moving presentation at Singularity University’s Global Summit last week in San Francisco, Hawken shared details from his recently-released book Drawdown: The Most Comprehensive Plan Ever Proposed to Reverse Global Warming.
Read the full article here and be surprised by at least one of the top solutions from Drawdown’s model.