During the past century through food and energy production, human activities have altered the world's nitrogen cycle by accelerating the rate of reactive nitrogen creation. India has made impressive strides in the agricultural front, in which N fertilizer plays a major role.

Anthropogenic activities are responsible for the enhanced emission of reactive nitrogenous species like nitrous oxide (N2O), oxides of nitrogen (NOx) and ammonia (NH3) into the atmosphere from the biosphere. This article reviews the available estimates of emissions of these reactive nitrogenous species for India.

Hong Kong companies that reduce their carbon dioxide emissions in the city can now sell those cutbacks in a $12.9bn global carbon credit market created under the Kyoto protocol. The new arrangements, announced by the Hong Kong government yesterday, are a step towards rectifying an anomaly created by China's "one country, two systems" rule over its special administrative region. Under this rule, Hong Kong companies are treated no differently from foreign companies when doing business in China.

A controversial bill on climate change goes before the Senate

But George Bush says no

A deal to be done between rich and poor countries on global warming is going begging

Next year will mark the 150th anniversary of the US's first oil well, in Titusville, Pennsylvania. Today, we are working to build a new economic future based on clean, renewable energy. The innovators of Titusville have modern-day counterparts in the entrepreneurs, scientists, investors and working people who are part of a growing movement to build a "green economy".

World Environment Day is celebrated each year on 5th June, & this commemoration acts as a principal vehicle through which' 1 the environmental ^protection agencies create awareness about environment and enhances public attention and action.

If Dubai's Burj Al-Arab hotel with its billowing sail is changing world architecture, wait till the India Tower, currently under construction on Mumbai's marine row Queen's Necklace, gets into business in 2010. At 300 m, it may not match Burj in height (321 metres) but it will stand tall for doing it the right way. It will be powered by a solar chimney, use recycled raw materials such as aluminum, steel, tiles (made of recycled glass and minerals), bamboo products, non-toxic paints, fly ash - cement (a byproduct of heating coal) and have a green roof.

Will Veto Legislation That Leaves Out India, China Washington: President George Bush would veto climate change legislation to be considered by the US Senate this week because it does not seek action in concert with all major economies, including India and China, even if the Senate passes the bill. As the president said last April "there is a right way and a wrong way to reduce greenhouse gas emissions,' White House spokesperson Dana Perino said on Monday, suggesting "the bill being debated on the floor this week in the Senate is the wrong way'.

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