The human impact of climate change

London: Studies of patients in western Cambodia suggest that malaria could be developing resistance to the most effective type of drug, putting millions of lives at risk.

The cuckoo, traditional harbinger of Spring, has become one of Britain's most threatened birds, joining a "red list" of the 52 most vulnerable species.

Numbers of the bird famous for laying its eggs in others' nests are down almost 40 percent in 15 years.

Uncertainty that a global climate change deal can be reached at Copenhagen in December has dented confidence in the global greenhouse gas emissions market, a survey released on Wednesday showed.

Zimbabwe is on the brink of having 100,000 infections of cholera, a preventable disease that has already killed 4,283 people there and remains a serious threat, the Zimbabwean Red Cross and its partners said on Tuesday.

Washington defended its plans to cut its greenhouse gas emissions as among the most ambitious in the world Tuesday as major economies meeting in Paris rallied around a Mexican plan to raise cash to fight climate change.

Only a short time ago, African farmland seemed of little interest to outsiders. But last year's food crisis and water scarcity in many countries has changed foreigners' appetite with the result being that fertile soil in Africa is now sought by international investors to the tune of hundreds of thousands of hectares.

The number of people displaced by conflict and natural disaster in Central and East Africa is now more than 11 million, the United Nations said on Monday.