HUMAN ENVIRONMENT by Parisa Watson. Chapter 13. Field NOTE. -Tsunami-Dec 26, 2004 Sri Lanka Sumatra -CFC's-chlorofluorocarbons-growing hole in the ozone layer in Antarctica -Industrial Production in Netherlands in Germany causing acid rain in Scandinavia.
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-Tsunami-Dec 26, 2004 Sri Lanka
-CFC's-chlorofluorocarbons-growing hole in the ozone layer in Antarctica
-Industrial Production in Netherlands in Germany causing acid rain in Scandinavia
Alfred Wegener-Continental Drift Theory
-Earth 70% Water
-Volcanic Eruptions cause mass depletions and contribute to mass extinctions
-Pacific Ring of Fire
Division of the Earth’s crust into plates, which are in motion
Effects of climatic cycles and human interference
-irrigation, pesticide use
-lost 3/4 surface area
It was not until after the construction of the irrigation ditches were completed that problems began to occur. With the loss of the water flow to the Aral Sea, the water level began to drop.
The water level has dropped by 16 meters (40 feet) and the volume has been reduced by 75 percent, a loss equivalent to the water in both Lakes Erie and Huron.
Because there was too much salt in the water it began killing the plants and animals.
All 20 species of fish that once lived in the Sea are now extinct.
As the marine life died, the fishing industry suffered.
The once thriving fishing industry employing roughly 60,000 people in the early 1960s has been destroyed.
Old fishing boats in dried lake bed.
Winters have become harsher and longer.
Summers hotter and shorter.
Muynak was once a fishing port the boasting a proud fishing fleet during the Soviet era.
Muynak used to be located on the shores of the Aral Sea.
The shrinking of the Aral Sea has been called “one of the planet’s worst environmental disasters”.
In 1960, the Aral Sea was the world’s 4th largest lake. The sea is now only 10% of it’s original size!
Overuse of Water by people
-some export waste to LDC's
-landfill capacity in many states, have to buy space from other states
of toxic and radioactive wastes
1) by foot or boat
4) steam engine
5) combustion engine
Todays transportation causes more pollution than ever before
Global conventions on environmental problems