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Over the past 100 years, the world's population has grown really fast and just reached 8 billion. Will our Earth come to an end because of overpopulation? There's someone who thought about this before. His name is Thomas Malthus. So, we can use Malthus' book, Population Theory, as the starting point of our conversation. Malthus argued that the supply of food increases arithmetically, but the population increases exponentially, so humans will always remain hungry if they don't control. This is so-called 'Malthusian Trap'. Malthus had a fairly scientific basis for nitrogen fixation in the soil. But humans have found food breakthroughs many times. For example, Fritz Haber's synthetic fertilizer was a remarkable achievement for mankind. So Malthus' prediction seems to be over. Is that really it? In front of us lies a new problem that are so huge that we can't even think of solving it. And it's certain that this will stop our food production. Now mankind needs a way to avoid the specter of Malthus, who will come again if we do nothing. --- #Population #GlobalWarming #FritzHarber #GreenhouseGas #Malthus #FoodCrisis --- 00:00 Population Explosion and The Earth in 2731 00:54 Malthus' Population Theory and the Relationship between Food and Population 01:40 Rationale for Arithmetic Increase in Food - Nitrogen Compounds 02:10 Natural Nitrogen Fixation 1 - Lightning 02:35 Natural Nitrogen Fixation 2 - leguminous bacteria 02:59 Guano and Imperialism 04:09 Fritz Harber - Father of Chemical Fertilizer 05:01 Fritz Harber and WWI 06:40 Green Revolution and Norman Borlaug 07:12 The First Reason Malthus was wrong - Exponential increase in food 07:40 T second Reason Malthus Was Wrong - Birth Rate in Developed Countries 08:00 Population and Sigmoid Functions 08:25 Global Warming affecting Food Production 10:40 How to Avoid Specter of Malthus 11:10 OpenHands 11:45 Weniverse Membership --- This video was sponsored by OpenHands. OpenHands is a non-profit organization that distributes water filters to families in poor countries and build schools for children. There are more stories if you search for OpenHands on Instagram and YouTube. 👉openhands.or.kr --- Please join 'We'niverse through YouTube membership :) 👉 / weniverse --- Weniverse Original Soundtrack 'Overpopulation' 🎼 / overpopulation --- Reference 2050 The Uninhabitable Earth Factfulness Ourworldindata --- Weniverse Understanding We & Universe © 2021 Weniverse. All Rights Reserved.