Ocean Salinity Change Spurs Expedition | LiveScience

"Climate is changing all the time, and some of that change is due to natural variation," Schmitt said. "The 50-year trend we are talking about, most of us believe is really due to the general trend of global warming."

Twitter / BigJoeBastardi: SO after the hot summer was ...

SO after the hot summer was global warming, if model is right about winter, whats your explanation going to be? pic.twitter.com/YtvnNvvX

Bill Chameides: Not a Hoax: Climate Change Shows Up in a Presidential Acceptance Speech

While it is true that there is still scientific debate about how much warming there will be, how much humans contribute, and how severe the risks will be, those are a second-order or even-third order debate. For example we can't say exactly how much warmer it will be, but the scientific consensus is that it will be significant and will pose significant risks.

Think of it this way: if you are allergic to nuts, all you want to know is if there are nuts in the dish you're thinking of ordering. The fact that there is no consensus among the chefs as to whether the nuts are pecans or almonds is not all that relevant to your decision.