This picture gives the reader some basic information about two organizations working to ensure global environmental sustainability.

Although France wants to have 23% renewable energy by 2020, the region of Midi-Pyrénées is more ambitious, and wants to become the first green valley of europe, with a green production of 100% energy.

Beau from GENI gives a short presentation about energy generating technologies on Island nations, and how they are becoming less dependent on fossil fuels and using alternative energy sources.

Tania from GENI gives a short presentation about energy generating technologies in the UK, and how 100% renewable energy can be possible by 2020.

Tania Soares- 100% Renewable Energy In The UK

Boyd Cohen

Crunching a list of variables about innovation and sustainability, we rank the world’s smartest cities, from New York to Hong Kong (and with an unexpected winner)

Christopher Mims

Today, renewable energy sources generate 12 percent of electricity in the U.S. But wind, wave, sunshine and others represent more than 93 percent of the energy the country could be producing, according to the Energy Information Administration of the U.S. Department of Energy.

United Nations

The report of the United Nations Secretary-General's High-Level Panel on Global Sustainability.

Mark Kinver

The US has regained top spot from China as the biggest investor in clean energy in 2011, according to global rankings.

The table, published in a report by the Pew Charitable Trusts, showed that US invested more than $48bn (£30bn) in the sector, up from $34bn in 2010.

New Hampshire, USA -- Japan this week marks the one year anniversary of the devastating earthquake and tsunami that has since forced it to re-evaluate its nuclear strategy.