_Environmental_Crisis_Climate change.pptx

Environmental crisis. Environmental crisis may be caused by both natural occurrences or human contributions. Now these environmental crisis may result to climate change. Examples of environmental crisis include, air pollution, land pollution, water pollution, noise pollution, etc.
What causes it
Natural
Human contribution

1. Environmental crisis

2. But, still, some examples Natural changes : Volcanic eruptions release sulfur dioxide Human contribution : coal fumes, burning of wood and garbage Combos : sandstorms + combustion exhaust + industrial waste (Riyadh – one of the most polluted cities in the world)

3. So? Desertification – land degradation; 28,000 rivers have disappeared in China (2013) Deaths – lung cancer, kidney stones; shorter life expectancy

4. Catch up. 1950 – Industrial Revolution: developed and urbanized society United States Worst polluter in the world – 27% of the world’s carbon dioxide emissions If the US could do it, why can’t we?

5. Climate change The world is getting hotter Is that a problem? Not really. Then all is fine? No, because we are getting hotter TOO FAST