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PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY↓ More info and sources below ↓Uploaded 19-02-20Thanks to Bill and Melinda Gates for sponsoring today's video. Check out their Annual Letter here: http://www.inflcr.co/SH1jPWe’re on PATREON now! Join the community ►► https://www.patreon.com/itsokaytobesmartIf you tried to sum up the last 150 years or so in one image, a chart of exponential growth would be a good place to start. It shows that some things change faster over time. You could apply it to life expectancy. Or compound interest. Or any number of things. But especially population growth. Back in 1798, a guy named Thomas Malthus noticed that not everything grows this way. And this caused people to worry because they were sure it would lead to massive death and starvation and famine. But that didn’t happen, thanks to something called the Green Revolution and a guy named Norman Borlaug. As we face a future population of ten billion and a world impacted by climate change, how will we do a Green Revolution 2.0? #GatesPartner References: https://sites.google.com/view/cansciencefeed10billionpeople/home Special thanks to our Brain Trust Patrons:AlecZeroBob RossetBrent M.Diego LombeidaRon Kakarvincbis-----------Join us on Patreon! https://patreon.com/itsokaytobesmartTwitter http://www.twitter.com/DrJoeHansonhttp://www.twitter.com/okaytobesmart Instagram http://www.instagram.com/DrJoeHanson http://www.instagram.com/okaytobesmart Merchhttps://store.dftba.com/collections/its-okay-to-be-smartFacebookhttps://www.facebook.com/itsokaytobesmartpbs/ Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices
