Climate scientists have long warned that global warming could unlock vast stores of the greenhouse gas methane that are frozen into the Arctic permafrost, setting off potentially si

More troubling news from the bottom of the world.

A new ranking of the world’s nations by environmental performance puts some of the globe’s largest economies far down the list, with the United States sinking to 61st and China to 121st.

Written by Susan Kraemer All of this infrastructure could be out of commission in a century. Nearly all the infrastructure in Dubai could be underwater by 2100.

Africa's rapidly growing population projected to see urbanisation, economic growth, health and climate problems