Test Review

our impact has included raising the planet's temperature by 1.2 F to 1.4 F in the last hundred years
burning fossil fuel produces CO2 (coal has much more pollution but it's cheap)
big deal:
- rising sea level (flood coastal area)
- drought (more prominent in warm area) → change what thing can grow here
- species cannot adapt changing condition so make the extinction → polar bear
Bill Nye
- science educator
- writer
- scientist
- mechanical engineer
- inventor
- swing dancer
- Science Guy
what are in greenhouse gases
greenhouse gas reflect sunlight
Bill: talk about
1. creationism - how the world was invented
he thinks it should be taught in religion or social study class not science if it is in high school.
2. climate change
ocean has risen more than .3 degree F since 1969 caused:
- 30% rise of acidity in ocean's chemistry
- certain species become calcified
- shallow water corals increase
- ocean food chain is in danger
since 1994 each year the Earth has lost from its glaciers: 400,000,000,000 tons
definition of climate change
what can we do: recycle and reuse
- walk or use public transportation
- turn off electronics when not use
- eat less meat (need to feed animals)
- eat more locally grown vegetables and food