President Obama sent two of his Cabinet secretaries to China this week to deal with the question of global warming. Both of them are of Chinese descent. That sent a ripple of interest through China's officialdom.

A farming company uses juice from the vegetable to run a fuel cell. It's one of a growing number of businesses that use their waste to produce electricity.

A consortium of 12 of Europe's largest blue chip firms yesterday formally signed up to the world's most ambitious solar energy project, agreeing to draw up detailed plans that could see energy from giant solar thermal power plants in North Africa meet up to 15 per cent of Europe's energy needs.

A new report of scientific findings confirms not only that human activity is the primary cause of rising temperatures, but that climate change impacts are accelerating.

Today's environmentally conscious householder is becoming more aware of their impact and more willing to do something about it. Simple power saving devices for around the home are one of the best places to start and and encouragingly, they are continuing to appear. One of the greatest wastes of energy in the household is standby power and here to combat this, is the TrickleSaver. With the ability to sense when a TV or PC is off and shut down any connected peripherals like games consoles or printers, TrickleSaver is looking to make "vampire power" a thing of the past.

Dubai conjures up BIG images; not just the tallest structures, although it currently holds that crown, but also big as in flamboyant, lavish and generally larger than life. Amidst the opulence, extravagance and seemingly limitless budgets - or perhaps because of the latter - Dubai is increasingly embracing its green side. The latest building designed for the city to cross our desk has a foot squarely in both camps - the Almeisan Tower combines a delicate, soaring structure with a 600kW solar tower and passive cooling systems claimed to be almost "triple zero", which means it has zero emissions, zero energy requirements and zero waste.

The government has announced what it describes as radical plans to cut our emissions.

Five climate change pieces with something new to say: Two degrees of global warming -- the target the G8 nations last week approved as a maximum temperature rise allowable due to climate change (and which many argue is being made inevitable by slow political action in G8 nations) -- has been played in the media as a "moderate" target. It's not. Real Climate writes about a two-degree goal:

Dear EarthTalk: To what extent does human population growth impact global warming, and what can be done about it? -- Larry LeDoux, Honolulu, HI. No doubt human population growth is a major contributor to global warming, given that humans use fossil fuels to power their increasingly mechanized lifestyles. More people means more demand for oil, gas, coal and other fuels mined or drilled from below the Earth's surface that, when burned, spew enough carbon dioxide (CO2) into the atmosphere to trap warm air inside like a greenhouse.

Companies like Google and IBM are trying to lead the world in cutting-edge, efficient data centers. Not to be outdone, on Tuesday Yahoo announced they're hoping to change to future of data centers as well. The company unveiled plans to build one of the world's most efficient data centers in Lockport, NY and the details do sound pretty exciting.

When Congress was debating an extension of the renewable energy tax credits set to expire at the end of 2008, the loudest argument from the wind and solar industries was that letting the tax credits expire would have a deleterious affect on renewable energy development in the United States. And before the credits expired, Congress passed a short term extension of the renewable energy production and investment tax credits.

Actuellement perçus comme une contrainte et n'étant pas encore une priorité pour plusieurs pays africains, le changement climatique et l'écologie offrent pourtant de vastes opportunités pour le continent.

Le dustbot, un robot qui patrouille les rues à la recherche de pollution!

WWF provides interactive map predicting 'Global Climate Change Impacts in the U.S.'

A new way of processing rice husks for use in concrete could lead to a boom in green construction.

Les pays d'Amérique latine arrivent en tête du classement des pays sur des critères comme leur emprunte écologique et le bonheur de leur population. C'est ce qui ressort du Happy Planet Index (HPI) qui est calculé par le think tank londonien NEF (New Economics Foundation).

Vous avez aimé le bonus-malus automobile ? Vous aimerez le « chèque vert» annoncé hier par Jean-Louis Borloo, qui milite pour une fiscalité verte efficace et donc non punitive.

Trina Solar Limited est une société chinoise fondée en 1997, numéro 3 mondial en production de cellules PV bien implanté en Europe (Allemagne, Espagne, Italie). C'est elle qui fournira des cellules PV au français Lisa Airplanes, qui fabrique et commercialise Hy Bird, le premier avion entièrement écologique fonctionnant aux panneaux solaires et à l'hydrogène.

After six long years of planning, talking and hard work, the world finally got its first look at the 100% solar-powered Solar Impulse HB-SIA on June 26th. This remarkable feat of engineering, with the wingspan of a Boeing 747 but only the weight of an average family car, has over 12,000 solar cells powering four electric motors with a maximum power of 10HP. The aircraft prototype is expected to take its first flights before the end of the year.