Watch Us Do This Really Simple Science Experiment That Proves Donald Trump Wrong

And almost screw it up.

<a href="http://www.shutterstock.com/pic-151104653/stock-photo-crazy-scientist-young-boy-performing-experiments.html?src=Fjt4NAp0R2_NHZIqOiwwmg-1-5">Levranii</a>/Shutterstock


Climate change can be a hard thing to wrap your head around. It’s really scary! The Earth is really complicated! There are a lot of numbers!

But if you want to know whether global warming is real, there’s really only one thing you need to know: Does carbon dioxide trap heat in the atmosphere? Scientists have known the answer (yes) since at least 1895, when the Swedish chemist Svante Arrhenius did the first research on what came to be know as greenhouse gases. Some climate change questions are hard, like how to predict the movement of clouds in computer models. But the basic existence of the greenhouse effect is very straightforward and noncontroversial. Among scientists, that is. Donald Trump and some other prominent Republican politicians are still struggling.

In fact, the greenhouse effect is so basic that you can even prove its existence with a simple DIY experiment. We got the idea from the great science communicator Bill Nye, who talked about it when he appeared on a recent episode of our Inquiring Minds podcast. We decided to give it a try, and it worked…barely. We’re not scientists, okay?

More Mother Jones reporting on Climate Desk

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LET’S TALK ABOUT OPTIMISM FOR A CHANGE

Democracy and journalism are in crisis mode—and have been for a while. So how about doing something different?

Mother Jones did. We just merged with the Center for Investigative Reporting, bringing the radio show Reveal, the documentary film team CIR Studios, and Mother Jones together as one bigger, bolder investigative journalism nonprofit.

And this is the first time we’re asking you to support the new organization we’re building. In “Less Dreading, More Doing,” we lay it all out for you: why we merged, how we’re stronger together, why we’re optimistic about the work ahead, and why we need to raise the First $500,000 in online donations by June 22.

It won’t be easy. There are many exciting new things to share with you, but spoiler: Wiggle room in our budget is not among them. We can’t afford missing these goals. We need this to be a big one. Falling flat would be utterly devastating right now.

A First $500,000 donation of $500, $50, or $5 would mean the world to us—a signal that you believe in the power of independent investigative reporting like we do. And whether you can pitch in or not, we have a free Strengthen Journalism sticker for you so you can help us spread the word and make the most of this huge moment.

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