Greenhouse gas

ISSUES

GG emissions are still climbing

The greenhouse effect was discovered in the XIXth century: Joseph Fourier described it in 1824. It is the process by which certain atmospheric gases absorb some of the energy of sunlight reflected by the Earth. Without this, they would go back into space. This energy heats the planet. And the more gases there are, the more they heat the planet.
This is a natural mechanism. Thanks to it, the Earth's average temperature is compatible with life. Without it, the Earth's average temperature would go down to -18°C and even much lower. But the greenhouse effect is not always favourable to life as on Venus, it is the cause of its unbearable surface temperature: about 460°C.
The recent greenhouse gas concentration increase on Earth has caused global warming. The phenomenon has not surprised scientists: in 1896, the Swedish researcher Arrhenius calculated that if the CO2 in the atmosphere doubled, the average temperature would go up by...

NEWS

Sorry, most of the news are only available in French language for the moment.

UNITED STATES OF AMERICA - WASHINGTON - Le président Barack Obama a promis mardi de continuer à se battre pour faire adopter une législation...

UNITED STATES OF AMERICA - WASHINGTON - Les démocrates du Sénat américain ont asséné un coup d'arrêt jeudi à un vaste projet de loi sur l'énergie...

FRANCE - PARIS - Les pays industrialisés concernés par le Protocole de Kyoto doivent réfléchir "plus sérieusement" à la suite à...

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DEBATES

Europe needs to reduce emissions by 30%

Jean-Louis Borloo

This is why we today set out our belief that the European Union should raise its emissions target. A reduction of 30 per cent...

World Cup: environmental red card?

What impact does an event like the World Cup have on the...

A Hard Look at the Perils and Potential of Geoengineering

In the beginning, I had my doubts. The Asilomar...

FOCUS

A climate Seattle

The Seattle demonstrations, during the 1999 WTO summit put alter-globalization on the international agenda and influenced negotiations for years. If the Copenhagen summit causes popular mobilization on such a...

VIDEOS

15/07/2010	Dans An Inconvenient Truth, Al Gore montre les problèmes environnementaux...	09/06/2010	NASA's MODIS satellite instrument reveals how air pollution may alter...
07/06/2010	German research institute IFM-GEOMAR and environmental organisation...	27/05/2010	Our emissions of carbon dioxide threaten to alter the very chemistry of...

GREEN TIPS

Intelligent electricity

In Washington State, an electrical network offers some 300 homes an intelligent energy supply. The principle...

INDICATORS

Carbon dioxide emissions

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