Presentation on theme: "Riallineamento delle competenze sessione di recupero I Quadrimestre classe IV ITI Testi di riferimento What is global warming? from Slides Pag 104 The."— Presentation transcript:
Riallineamento delle competenze sessione di recupero I Quadrimestre classe IV ITI Testi di riferimento What is global warming? from Slides Pag 104 The Greenest City: London from Slides pag 109 n. 17 San Francisco bans plastic shopping bags, from Slides (WB) pag 103
GREENHOUSE EFFECT Greenhouse gases (vapour, water, carbon dioxide and methane) surround the Earth’s surface and part of the atmosphere = they trap heat naturally. Greenhouse gases let in light BUT they prevent heat from escaping…
Greenhouse gases They are like the glass walls of a greenhouse It is called the 'Greenhouse Effect', because it works the same way as a greenhouse. The windows of a greenhouse play the same role as the gases in the atmosphere, keeping some of the heat inside the greenhouse.
Global warming refers to an average increase in the Earth's temperature, which in turn causes changes in climate. There are several greenhouse gases responsible for warming
The effect Sea levels (Ice melting in the Antarctic and Greenland will flow into the sea)
The Greenest City: London from Slides pag 109 n. 17 Interview between a journalist and the (former) Mayor of London, Ken Livingstone Ken Livingstone and Boris Johnson (since 2008)
His agenda Climate change is on top of his agenda because it will impact on every aspect of life
Plans to make London the greenest city To launch / create a Climate Change Agency Cut the carbon dioxide emissions Firms should install renewable energy products Great use of solar panels and wind turbines
Individual Londoners should change the way they live, such as Build their homes paying attention to the energy saving products Use greener energy Save energy
Drawbacks of plastic bags San Francisco produces about 180 million plastic bags each year Hard to recycle Choke animals and birds Blow into trees and waterway Take up large amounts of space in landfills
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