Behind the headlines, scientists warn that climate change is already hitting New Mexico
Signs of ancient life are scattered across the mesas above the Chama River as it winds along highway 84 in northern New Mexico. The ground here is strewn with pieces of black and white pottery, and bumps and divots in the soil reveal the lines of stone rooms and walls.
An Australian climate lawyer says the G8 nations' commitment to a 50 per cent cut in global greenhouse gas emissions would require a much bigger reduction target for industrialised nations.
Countries agreed at the G8 summit to a "vision" of halving greenhouse gas emissions by 2050.