Before the US government conducted its first nuclear weapons test on July 16, 1945, scientists were concerned the so-called Trinity test could ignite a chain reaction with nitrogen in the air that would end life on earth.
Read the full story on The Australian: http://www.theaustralian.com.au/news/features/what-happens-when-the-food-runs-out/story-e6frg6z6-1226004670563