350.org was founded by U.S. author Bill McKibben, who wrote “The End of Nature” in 1989, a book regarded as the first one written for the general public on climate change.

It is based on a statistic provided by scentific research, and backed by climate experts and many governments. 350 parts per million of CO2 is considered the maximum safe level for humanity to exist on the planet for the long term – we are currently at 390.18! Current environmental targets set by the leading governments will not reach this target of 350.

October 24th has been set as the international day of climate change, and people round the world are encouraged to speak up on this day, so that the worlds leaders will take notice in advance of the UN Climate Change conference in Copenhagen in December this year.

Find out more about the campaign at http://www.350.org/ and watch the video above.