Why is overpopulation a problem?

Without doubt, climate change is the greatest challenge humanity has ever faced. The scientific evidence of the scale of the threat is overwhelming, compelling and frightening. Climate tipping points – points which if crossed will lead to runaway global warming – are being crossed now. We live in a time of consequences. So it’s crucial that the climate justice movement – made up of those determined to take a stand now to win a safe climate future – campaigns for the changes that can actually make a difference.