To: President Donald Trump

President Obama: It's Time to Reject Keystone XL.

The Keystone XL pipeline will contribute to climate change and fails the climate test. Don't wait to make your mark on history. Stop the pipeline now.

Why is this important?

Good news: President Obama has promised to veto legislation to approve the Keystone XL pipeline.

With the President's vow to veto, he has shown that he's willing to take some heat for standing up to Big Oil. How he can make his mark on history by rejecting the pipeline once and for all.

President Obama has the support he needs -- from science, and from the people -- to reject the pipeline. An 830,000 barrel per day pipeline of the world's dirtiest oil will obviously contribute to climate change, failing his climate test.