http://insights.wri.org/news/2012/06/40 ... -threshold" onclick="window.open(this.href);return false;Last week we passed an unfortunate marker when it comes to climate change: concentrations of carbon dioxide (CO2) in the atmosphere have hit 400 parts per million (ppm) near the Arctic.
To make matters worse...
Meanwhile nations give token gestures in support of carbon emission reduction and some companies capitalize on consumer interest in "carbon neutral" products.The news of surpassing the 400 ppm marker was made more troubling as it coincided with new data from the International Energy Agency (IEA), which indicates that global CO2 emissions increased 3.2 percent over the past year, reaching a record high of 31.6 gigatonnes (Gt). The IEA suggests that the world is now just 1 Gt away from the level at which CO2 emissions must stay if we are to have a 50 percent chance of keeping the rise in global average temperature to 2°C above preindustrial levels. And most scientists suggest that even a 2°C increase is too high, as some parts of the world—such as the polar regions—would face temperature increases of two-to-three times the global average.
Things just keep getting worse. I've accepted this, but still I can't help but look in awe at how this is unfolding.