About 80% of the world's population lives in areas where the fresh water supply is not secure, according to a new global analysis.
Researchers compiled a composite index of "water threats" that includes issues such as scarcity and pollution.
The most severe threat category encompasses 3.4 billion people. Writing in the journal Nature, they say that in western countries, conserving water for people through reservoirs and dams works for people, but not nature.
Water map shows billions at risk of 'water insecurity'
One-fifth of world's plants at risk of extinction
One-fifth of the world's plants - the foundation of life on Earth - are at risk of extinction, a study concludes. Researchers have sampled almost 4,000 species, and conclude that 22% should be classified as "threatened" - the same alarming rate as for mammals.
A further 33% of species were too poorly understood to be assessed. The analysis comes from the Royal Botanic Gardens at Kew, the Natural History Museum and International Union for the Conservation of Nature (IUCN).
Ed Miliband: Blair 'wrong' on Iraq war
New Labour leader Ed Miliband today conceded the conflict in Iraq had divided the country and said Tony Blair's government was "wrong" to go to war.
"I criticise nobody faced with making the toughest of decisions and I honour our troops who fought and died there. But I do believe that we were wrong. Wrong to take Britain to war and we need to be honest about that.
CIA steps up drone attacks in Pakistan amid fear of 'credible but not specific attacks'
A sharply escalated campaign of CIA drone strikes in Pakistan is aimed in part at al-Qaeda units suspected of planning terrorist attacks on targets in Europe, a threat that U.S. officials described as "credible but not specific" enough to allow authorities to anticipate precisely where or when a strike might occur.
The intensified bombing of targets in North and South Waziristan represents an expansion of the secret drone program from its origins as a weapon used in a selective hunt for high-ranking operatives to one now delivering a barrage of strikes in the hopes of disrupting a still-murky plot.
GM maize 'has polluted rivers across the United States'
An insecticide used in genetically modified (GM) crops grown extensively in the United States and other parts of the world has leached into the water of the surrounding environment.
The insecticide is the product of a bacterial gene inserted into GM maize and other cereal crops to protect them against insects such as the European corn borer beetle. Scientists have detected the insecticide in a significant number of streams draining the great corn belt of the American mid-West.
Most Americans believe in God but don't know religious tenets
Americans are clear on God but foggy on facts about faiths. The new U.S. Religious Knowledge Survey, released today by the Pew Forum on Religion & Public Life, finds that although 86% of us believe in God or a higher power, we don't know our own traditions or those of neighbors across the street or across the globe.
Among 3,412 adults surveyed, only 2% correctly answered at least 29 of 32 questions on the Bible, major religious figures, beliefs and practices. The average score was 16 correct (50%).
Jewish Gaza-bound activists: IDF used excessive force in naval raid
Israel Defense Forces soldiers used excessive force while taking over a Gaza-bound aid ship organized by Jewish and Israeli activists, the boat's passengers said Tuesday, countering the military's official version claiming that the takeover had been uneventful.
Earlier Tuesday the IDF reported that Israeli naval commandos peacefully boarded the Jewish aid boat attempting to break a naval blockade on Gaza, saying "IDF naval forces recently boarded the yacht 'Irene', and it is currently being led to the Ashdod seaport along with its passengers."
Wind energy can power much of East Coast, study say
The strong winds off the Atlantic Ocean could become a cost-effective way to power much of the East Coast — especially North and South Carolina, Delaware, Massachusetts, New Jersey and Virginia, a new study released Tuesday says.
The report by the conservation advocacy group Oceana argues that offshore wind could generate 30 percent more electricity on the East Coast than could be generated by the region's untapped oil and gas. It predicts that wind from the ocean could be cost competitive with nuclear power and natural gas to produce electricity.
Lieberman presents plans for population exchange at UN
Foreign Minister Avigdor Lieberman on Tuesday presented the United Nations with his draft for a population and territory swap, as part of an eventual peace deal between Israel and the Palestinians.
Under Lieberman's controversial scheme, part of Israel's Arab population would be moved to a newly created Palestinians state, in return for evacuation of Israeli settlements in the West Bank.
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