2018-2019学年北师大版高二选修8教案: Unit 22 Period 13
2018-2019学年北师大版高二选修8教案: Unit 22 Period 13第2页

 funding through taxes).

 Its focus should be on serving the needs of the nation and the people.

Nonprofit Organizations:

 They can provide public goods or services needed by the public.

 They can provide private goods.

 These organizations receive trust from those receiving the service and those supporting the service.

 Funding comes from voluntary giving of their supporters or grant funding.

 Their main focus is to accomplish organizational goals and break even with money coming in but no profit.

Global Warming Q & A

1. What causes global warming? Is it part of a natural cycle?

Answer: Global warming is caused by the build up of gases in the atmosphere such as carbon dioxide and methane, which form a sort of blanket over the Earth, trapping in heat that would normally escape the atmosphere. The leading greenhouse gas is carbon dioxide, a pollutant emitted from the burning of fossil fuels, such as coal, oil, and natural has. While it is true that there has always been some natural climate variability, the changes that are currently underway are unlike anything that has been seen before. Record levels of carbon dioxide are having a far reaching change over our weather, sea levels, and climate.

2. How can Global Warming affect our lives?

Answer: Global warming is sometimes referred to as the most dangerous experiment ever conceived. We do not know what the full affect of radical climate change will be on our environment, but we do know that even a modest rise of 2°- 3°F (1.1°-1.7°C) could have dramatic effects. In the last 10,000 years, the Earth's average temperature hasn't varied by more than 1.8°F (1.0°C). Temperatures only 5°-9°F cooler than those