CIBC 5003 Flashcards
How old is the earth?
4.53 billion years
earth’s population
7.53 billion
stratosphere
50km, much of the ozone is here
mesosphere
temp decreases with height
thermosphere
temp increases with height
exosphere
500km above. mainly contains oxygen and hydrogen atoms.
how much of the worlds water is salt?
97%
what percent is fresh water ?
3%
of the 3% how much is tapped inside Ice or Glaciers?
69%
how much is ground water?
30%`
how much is surface water?
1%
why is the climate important?
food production, wildlife, water avalibility, human health. weather conditions
what is considered the climate?
The “usual” condition of the temperature, humidity, atmospheric pressure, wind and rainfall in an area of e earth’s surface fo a long time.
what is “climate change”
climate change is any significant long tem change in the average weather. numerous factors influence this ; ocean, wind, snow, forests
GHG emissions
Greenhouse Gases
effects of climate change?
sea level rise, frost free season, more droughts and heat waves and numerous more.
construction contruibutes how much of the global GHG emissions?
25%
CO2 emissions increased annually by how much between 2010-2016?
1%
CO2 emissions increased annually by how much between 2010-2016?
1%