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Excessive use of fertilizer is polluting China's soils, in addition to their water from agricultural run-off, a new report from Science reveals. The report details the acidification and rates of nitrogen specifically in the North China Plain and the Taihu Lake region in south China.

"However, with increasing development pressure, market-based incentives are needed to ensure that private forests remain as forests." WRI officials hope the new online resource will illustrate the history of these forests, and help landowners better understand how numerous forces are affecting the region.

"China now has the fastest train in the world. It runs from the central city of Wuhan down to the south coast, at a speed of more than 380km/h."

Research by Dr Johnathan Kool of the ARC Centre of Excellence for Coral Reef Studies and James Cook University, and his colleagues, has established that the richest marine region on Earth - the Coral Triangle between Indonesia, Malaysia and the Philippines - depends vitally for its diversity and resilience on coral and fish larvae swept in from the South China Sea and Solomon Islands.

"Climate scientists say Colombia's glaciers could disappear within 15 years. Wet highland areas that provide much of the country's fresh water are getting warmer and drier. And each year, flooding becomes more severe. The coastal area of Tumaco has become an example of how environmental and security pressures are undermining previously stable communities."

The world's coral reefs are in danger of dying out in the next 20 years unless carbon emissions are cut drastically, warns a coalition of scientists led by Sir David Attenborough.

"The number of tigers in India's wild has gone up by 20%, according to the latest tiger census, which has surveyed the whole of India for the first time. The census puts the population of the big cat at 1,706. There were 1,411 tigers at the last count in 2007."