global warming
Significant Figures by Peter Gleick
Tag archives for global warming
Iconic Curves #2: On Exponential Curves, “Hockey Sticks,” and Environmental Crises
Posted by Peter Gleick on April 10, 2013 On April 2nd, I posted three iconic graphs showing some of the clear observational evidence that we’re changing the climate. That post produced a substantial, and largely thoughtful response, and a request for more information and data along these lines. Here are three more, along with a bonus fourth, all with a theme of exponential…
Three iconic graphs showing the climate fix we’re in.
Posted by Peter Gleick on April 2, 2013 Here are three iconic graphs (unfortunately, there are many, many more) showing just some of the clear observational evidence that we’re changing the climate. The first is the atmospheric concentration of carbon dioxide, measured at the Mauna Loa observatory in Hawaii. It shows the little ups and downs in concentration that varies with the seasons,…
An Inevitable Headline in 2014: “Planet’s CO2 level reaches 400 ppm for first time in human existence.”
Posted by Peter Gleick on March 7, 2013 Sometime, about one year from now, the front pages of whatever decent newspapers are left will carry a headline like the one above, announcing that for the first time in human existence (or in nearly a million years, or 3 million years, or 15 million years), the global atmospheric concentration of carbon dioxide – the…