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John Hunter puts all the problems of the world on a 4′x5′ plywood board - and lets his 4th-graders solve them. At TED2011, he explains how his World Peace Game engages schoolkids, and why the complex lessons it teaches - spontaneous, and always surprising - go further than classroom lectures can.

Given water's role in power generation, the impact of about 300 million Google searches a day is around 150,000 litres (40,000 gallons) daily -- in a world where water supplies are increasingly a major concern. "These two things -- water and energy -- come together and that's a big thing for the world to understand," says Len Rodman, a US-based water and energy expert. "If you squander water, if you indiscriminately use power, then in the long run that will have implications for the world," the chief executive of Black & Veatch, a major global water and energy company told AFP in an interview.

In what should be viewed as a contender for some sort of science prize for originality, researchers at Qatar University have come up with an idea whereby artificial clouds might be used to hover over stadiums for the 2022 world cup, which the nation will be hosting eleven years from now, to overcome nearly non-stop sunlight and extreme heat.

"Climate change caused by global warming is slowing down world economic output by 1.6 percent a year and will lead to a doubling of costs in the next two decades, a major new report said."

A number of threatened species in the developing world are entirely dependent on human agriculture for their survival, according to new research by the University of East Anglia (UEA).

A new study from Forrester proves that the majority of Americans are a bunch of lazy re-tweeters. Ninety-three percent of online consumers in emerging markets of China, India, Mexico and Brazil use social media tools at least once-a-month. U.S. and European consumers are far more likely to use social media as a spectator-like sport, joining it and then just watching it fly by. In the U.S., 68% of social media users are joiners, which means they maintain a profile on a social networking site and visit social networks. Only 73% are spectators, or users who mostly just read blogs, online forums, customer ratings/reviews and tweets, listen to podcasts and watch videos. This number is strikingly similar in Europe (EU-7 countries, to be specific), with 69% of users classified as spectators and 50% as joiners.

The Belchatow power plant is seen in September 2011 in Poland. The world has just five years to avoid being trapped in a scenario of perilous climate change and extreme weather events, the International Energy Agency (IEA) warned

The world in which we live would hardly be recognised by someone who lived and died half a century ago and who may have caught a glimpse of the television generation. The children born in the 90′s have only known a world where the Internet was a natural part of  their day to day lives. We now live in a society that verges on a digital tipping point that wraps and integrates our lives with the Web and it is no longer considered a luxury but a necessity in our modern lifestyle. So what is driving us to this digital dawn that is transporting us from the industrial past of the last 200 years and the TV industrial complex that emerged 50 years ago and embracing us in an information age that challenges our paradigms?

While most people know that the shortest distance between two points is a straight line, this concept is proving even truer in the world of stock trading. In a world where buying low and selling high means all the difference, racing the speed of light between to different financial markets can mean greater profit.

Any architect recognizes the Office of Metropolitan Architecture (OMA), lead by star architect Rem Koolhaas, as one of the most important and thought-provoking architectural firms in the world. The counterpart to OMA's architectural practice is AMO, a design and research studio that specifically focuses on areas beyond the traditional boundaries of architecture, such as media, politics, sociology, technology, fashion or graphic design. Remarkably, it seems AMO is getting more and more active in developing complex-scale, mass-medium data graphics. In February of this year, they presented the "Energy Report" for the WWF, a comprehensive study claiming that the world can be 100 percent reliant on renewable energy by 2050.

How does mobile ownership vary across the world? The latest data from the International Telecommunications Union (ITU) breaks down the number of people for every SIM card subscription across the different continents. Which continents are the mobile rich and which the mobile poor? The results might surprise you. Take a look at the infographic.

The world next week remembers 25 years since the worst nuclear accident in history at Chernobyl, haunted by fears that the Japan earthquake has shown again the risk of atomic power sparking apocalypse.

World population will reach 7 billion this year, prompting new concerns about whether the world will soon face a major population crisis.

The world on Tuesday marks a quarter century since the world's worst nuclear disaster at Chernobyl in Ukraine, haunted by fears over the safety of atomic energy after the Japan earthquake

Investing $40 billion annually in the forest sector is needed for the world to transition into a low carbon, resource-efficient green economy, according to a UN report released here Sunday.

"Last year, the South Pacific Island of Tokelau, a tropical atoll governed by New Zealand, became the first completely solar powered territory on Earth. Having invested $7.2 million on the project, the island of 1500 souls is now redirecting money it would have spent on oil to education, irrigation, and health care. Could Tokelau's experience be a harbinger for the rest of the world? Maybe, maybe not. It is worth remembering, after all, that most of the island's inhabitants are subsistence farmers, and that thousands of their countrymen have emigrated to New Zealand and Samoa. An advanced economy it is not."

"The projected snow loss, a result of climate change, could get even worse by the end of the 21st century, depending on how the world reacts. Sustained action to reduce global greenhouse gas emissions could keep annual average snowfall levels steady after mid-century, but if emissions continue unabated, the study predicts that snowfall in Southern California mountains will be two-thirds less by the year 2100 than it was in the years leading up to 2000."

Imagine a world where the windows of high-rise office buildings are powerful energy producers, offering its inhabitants much more than some fresh air, light and a view.

Climate change could mean unthinkable loss for South Africa, which hosts talks on global warming that will bring government negotiators, scientists and lobbyists from around the world to the coastal city of Durban next week. Guy Midgley, the top climate change researcher at the South African National Biodiversity Institute, said evidence gleaned from decades of recording weather data, observing flora and fauna and conducting experiments makes it possible for scientists to "weave a tapestry of change."