Senator Marty has been the Senate leader in fighting climate change. Because it is the biggest single threat to the future of society, He continues pushing for legislation to put a price on greenhouse gas emissions, to strengthen our renewable energy standards and to keep fossil fuels in the ground, including opposition to the unneeded pipeline expansion for the dirtiest tar sands oil. John has worked tirelessly to show the sense of urgency that is needed on the issue, and to push the political system to act boldly.