Toward a net-zero future To preserve a livable climate, greenhouse-gas emissions must be reduced to net zero by 2050. Bold, fast, and wide-ranging action needs to be taken by governments and businesses. But the transition to a low-carbon world also requires the participation of citizens – especially in advanced economies. ActNow is the United Nations campaign for individual action on climate change and sustainability. Every one of us can help limit global warming and take care of our planet....