In 1998, a handful of geoscientists breathed new life into a daring idea: that Earth froze over from pole to pole more than a half-billion years ago, threatening life with extinction but perhaps prodding it to greater evolutionary heights. Geoscientists report evidence that the tropics also hosted glaciers more than 100 million years before that supposed global freeze.

Reconstructing sea-level changes during the last deglaciation provides a way of understanding the ice dynamics that can perturb large continental ice sheets.

The sensitivity of Amazon rainforests to dry?season droughts is still poorly understood, with reports of enhanced tree mortality and forest fires on one hand, and excessive forest greening on the other. Here, we report that the previous results of large?scale greening of the Amazon, obtained from an earlier version of satellite derived vegetation greenness data ? Collection 4 (C4)

A drought that happens once in a hundred years had little negative or positive effect on the Amazon rainforest according to this study led by Arindam Samanta from Boston University. Its results are different from 2007 IPCC report which stated that 40 percent of the Amazon rainforest was threatened by climate change.

Europe's food safety watchdog on 25 February issued a scientific mass-verdict on more than 400 so-called health claims, the promises that food producers make on their labels and in advertisements, rejecting purported health benefits of a raft of substances.

The risk of gastrointestinal illness to swimmers from fresh sewage and non-sewage fecal sources at recreational beaches was predicted using quantitative microbial risk assessment (QMRA).

Ingvild Jenssen from the NGO Platform on Shipbreaking explains how tougher regulations simply relocated the shipbreaking industry, and how the public can help stop the trade.

A 9-year old Hardwickia binata Roxb. plants at a spacing of 5mx5m was intercropped with V. radiata (L.) Wilczek in 2003 to study interactive effects of trees on resource use and crop production.

Forestry CDM projects involving afforestation and reforestation offer opportunities for CO2 mitigation by removal of accumulated CO2 in atmosphere and sequester it in vegetation, soil and wood products.

Fairtrade covers the costs of sustainable production, plus a premium for the farmers to invest in tackling poverty and promoting sustainable development. In other words it's win-win.