|Date:||Tuesday – November 17, 2015|
|“Every person you add to the planet adds more greenhouse gases to the atmosphere and so worsens climate disruption. Every person you add to the planet, means we have to grow more food…”||Paul Ehrlich
In the first half, Prof. Paul R. Ehrlich discussed his work on population theory and mass extinction. He argues that many species of birds and mammals are being annihilated due to the human population explosion, along with commercial endeavors and the continuing development of natural areas. “Every person you add to the planet adds more greenhouse gases to the atmosphere and so worsens climate disruption. Every person you add to the planet, means we have to grow more food…and the biggest enemy of the climate is agriculture– about 30% of the greenhouse gases…come from our food system,” he noted. We’re running out of soil, and toxifying the entire planet, he added.
A huge variety of creatures are being eliminated under current conditions. For example, he cited how the orange-bellied parrot in Australia is disappearing largely because of habitat destruction, passenger pigeons in North America, that once numbered in the millions, are now extinct due to hunting, and many types of bats, which eat a lot of problematic insects, are dwindling down in numbers. Ehrlich estimated that the human population is 4-6 times too high, and for the planet to be able to support us, we should have no more than 2-3 billion people. For those interested in fostering change, and making the Earth more sustainable, he suggested getting involved with the organization MAHB (The Millennium Alliance for Humanity and the Biosphere).