Tuesday, June 11, 2013

GLOBAL WARMING. PANIC OR REALITY?

Global warming is already under way. The evidence is vast and the urgency of taking action becomes clearer with every new scientific study. Some of the most obvious signs are visible in the Arctic, where rising temperatures and melting ice are dramatically changing the region’s unique landscapes and wildlife—as well as people’s lives and livelihoods. Across the globe, other early warning signs include melting glaciers, shifting ranges of plants and animals, and the earlier onset of spring.
1.What is global warming? Global warming is the rise in the average temperature of Earth's atmosphere and oceans. Warming of the climate system is unequivocal, and scientists are more than 90% certain that it is primarily caused by increasing concentrations of greenhouse gases produced by human activities such as the burning of fossil fuels and deforestation.

2.What is the process involved in the greenhouse effect? The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. Since part of this re-radiation is back towards the surface and the lower atmosphere, it results in an elevation of the average surface temperature above what it would be in the absence of the gases.  

3.What signs warn us about global warmming? Some of the most obvious signs are visible in the Arctic, where rising temperatures and melting ice are dramatically changing the region’s. Across the globe, other early warning signs include melting glaciers, shifting ranges of plants and animals, and the earlier onset of spring.

4.Can you quote another term for global warming? For climate change we should take measures, we need to improve and care for our planet.
5.Watch the video and explain this idea: Global warming: panic or reality? Reality. This is starting to affect our planet, and people are starting to destroy it. I help improve our planet and destroying more than it already is.
6.What can we do to stop global warming? Suggest five ideas. -.Move more bike, walk... So it contaminariem. Cars, motorcycles ... Pollute a lot.- Recycled products.
- Use public transport more.
- When we go to buy, use bags you have already used before.
- Take advantage of daylight, heat ...

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