week 1 activity- 'An inconvenient truth'
Science of global warming
- Solar radiation in the form of lightwaves passes through the atmosphere - heats up the earth
- Most of the radiation is absorbed by the earth and warms it - some energy is radiated back into space by the earth in the form of infrared waves
- Some of this outgoing infrared radiation is trapped by the earths atmosphere and warms it, this is a good thing because it keeps the earths temperature under certain boundaries
- Thin layer of atmosphere is being thickened by all the global warming and pollution that is being put there.
- The thickness of the layer makes the infrared trapped which means the earth will be heated up more worldwide - global warming
- Roger Revelle - first person to propose measuring Carbon Dioxide in the earths atmosphere
- Kilimanjaro, Africa 1970-2000
- In 2000 lonnie took a picture with one of the last glaciers
- Within the decade there will be no more snow on Kilimanjaro
- Columbia glacier,Alaska - year by year the snow melts more and more
- Before 1980-2001 icecaps will slowing melt everyday
- 40% of people get water from spring water in the mountains - after decades the water is going to melt away, this will cause 40% of the world population to be without sufficient water
- Hurricane Katrina - it went over warmer water. As water temperature increases the wind velocity increases and moisture content as well - as it goes up the water and wind speed picks up which becomes stronger and stronger - thousands of people died, ended up homeless and jobless
- Melting ice increases the amount of animal deaths each year - polar bears are beginning to decrease and are not supposed to swim long distances for a long time otherwise they'll drown
Comments
Post a Comment