Summarize the following text in 5-7 sentences

GLOBAL WARMING: THE IMPACT OF ASIA'S GIANTS

If everyone lived like the average Chinese or Indian, you wouldn't be reading about global warming. On a per capita basis, China and India emit far less greenhouse gas than energy-efficient Japan, environmentally scrupulous Sweden – and especially the gas-guzzling U.S. (The average American is responsible for 20 times as much CO2 emission annually as the average Indian.) There's only one problem: 2.4 billion people live in China and India, a great many of whom aspire to an American-style energy-intensive life. And thanks to the breakneck growth of the two countries' economies, they just might get there – with potentially disastrous results for the world's climate.

The International Energy Agency (IEA) forecasts that the increase in greenhouse-gas emissions from 2000 to 2030 from China alone will nearly equal the increase from the entire industrialized world. India, though behind its Asian rival, could see greenhouse-gas emissions that rise 70% by 2025, according to the World Resources Institute. But the nearly double-digit growth rates that are responsible for those nightmare projections also present an environmental opportunity. "Anything you want to do about clean energy is easier to do from the outset," says David Moskowitz, an energy consultant who has advised Chinese officials. "Every time they add a power plant or factory, they can add one cleaner and better than before." If China and India can muster the will and resources to leapfrog the West's energy-heavy development path, dangerous climate change might be averted. "China and India have to demonstrate to other countries that it is possible to develop in a sustainable way," says Yang Fuqiang, vice president of the Energy Foundation in Beijing.

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7.2. a) Your friend living in London sent you a letter telling about record temperatures over 100°F which is extreme heat for Britain. Write him / her a reply telling about weather changes in your region, mention climatic changes in other parts of the world and tell what authorities try to do to curb temperature rise.