Climate security

Two degrees of climate change may be too much

Today we’re only about halfway to the 2-degree mark, yet the climate is already haywire. Numbers such as 2 degrees and 350 parts per million (or ppm, which many climate activists have identified as a “safe” level for carbon dioxide in the atmosphere) have become enshrined in the climate debate. Meanwhile, though, civilization’s industrial machinery marches on. We’re already at 400 ppm of carbon dioxide, and it looks like we will blow by 2 degrees, too.