An important article on human-caused climate change, "Climate Change 2013: Where we are now ... Not what you think," has recently been published by Truthout.org.
A few highlights: Scientists are now predicting that even worse impacts than previously understood will happen much sooner. A global response will be necessary for any serious attempt to stave them off.
We are likely closer to irreversible dangerous climate change, if it has not begun already.
The latest report of the Intergovernmental Panel on Climate Change (IPCC), which combines the work of 2,000 scientists from 154 countries drawing millions of observations from more than 9,000 scientific publications, finds that even 100 percent emissions reductions will no longer keep our climate from changing dangerously.
Net emissions reductions are now required. We have to take out more than what we are putting in.
In the last 28 years we have emitted as many greenhouse gas pollutants as have been emitted in the last 236 years.
Carbon dioxide emissions are worse than the IPCC's worst-case scenario. Instead of reducing emissions across the planet, total emissions since 1987 have increased 81 percent.
Oil is responsible for 2.5 times more warming than coal in the short term because coal emits a large amount of sulfur dioxide, which is a cooling agent.
The facts contained in the "Climate Change 2013" at the very least affirm the necessity of stopping the Keystone XL pipeline.
Producing synthetic oil from tar sands generates three times the global warming pollution of conventional crude. A Cornell University study has found that the project would kill more jobs than it creates.
Call/write President Obama and/or google "Tell President Obama Reject the Keystone XL."