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.
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#Population #GlobalWarming #FritzHarber #GreenhouseGas #Malthus #FoodCrisis
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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
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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 KZfaq.
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'Overpopulation'
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Reference
- 2050 The Uninhabitable Earth
- Factfulness
- Ourworldindata
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