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

And almost screw it up.


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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FOLLOW THE MONEY

Corporations and billionaires don’t fund journalism like ours that exists to shake things up. Instead, support from readers allows Mother Jones to call it like it is without fear, favor, or false equivalence.

And right now, a longtime friend of Mother Jones has pledged an incredibly generous gift to inspire—and double—giving from online readers. That's huge! Because you can see that our fall fundraising drive is well behind the $325,000 we need to raise. So if you agree that in-depth, fiercely independent journalism matters right now, please support our work and help us raise the money it takes to keep Mother Jones charging hard. Your gift, and all online donations up $94,000 total, will be matched and go twice as far—but only until the November 9 deadline.

$400,000 to go: Please help us pick up the pace!

payment methods

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