Activist and author blogs about politics, energy and Earth's resources.
Melting arctic ice releasing long-held pollution
Warmer temperatures are melting arctic ice and re-releasing legacy chemicals back into the atmosphere.
Thu, Aug 18, 2011 at 02:19 PM
As if we didn't have enough to worry about with the pollution that we've created recently, a new study suggests that global warming is melting Arctic ice and causing toxic chemicals like PCBs and hexachlorobenzene
, trapped years ago, to be released into the atmosphere. Many of the chemicals being released were banned decades ago.
According to an article in the journal Nature Climate Change, persistent organic pollutants (POPs) are being released into the air and picked up by currents carrying them wide and far.
Some of these chemicals are dangerous for their greenhouse gas properties while others could find their way into the food web and cause major disruptions. It's a reminder of our dirty, industrial heritage and the sacrifices that we've made in getting to where we are today.
The opinions expressed by MNN Bloggers and those providing comments are theirs alone, and do not reflect the opinions of MNN.com. While we have reviewed their content to make sure it complies with our Terms and Conditions, MNN is not responsible for the accuracy of any of their information.