Carl Sagan testifying before Congress in 1985 on climate change
Carl Sagan was not the first to warn the world about global warming, the first warnings were published in the late 19th and early 20th century. In the early 1970s, about 50 years ago, warnings slowly became more frequent and urgent.
We have known for a long time that we’re headed for global disaster.
eclecticca liked this 
elfboi reblogged this from the-elf-has-had-enough radioblueheart reblogged this from the-elf-has-had-enough
the-elf-has-had-enough posted this
