environmental history what causes “natural” environmental change?
Post on 21-Dec-2015
219 views
TRANSCRIPT
![Page 1: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/1.jpg)
Environmental HistoryWhat causes “natural” environmental
change?
Environmental HistoryWhat causes “natural” environmental
change?
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
![Page 2: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/2.jpg)
Environmental HistoryWhat causes “natural” environmental
change?
Environmental HistoryWhat causes “natural” environmental
change?
External Changes1. Solar luminosity2. “Slowing” of Earth’s rotation3. Earth’s orbit4. Magnetic field 5. Meteorite/comet impacts
![Page 3: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/3.jpg)
Solar LuminositySolar Luminosity
![Page 4: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/4.jpg)
Earth’s Rotation & the Moon
Earth’s Rotation & the Moon
![Page 5: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/5.jpg)
OrbitalChangesOrbitalChanges
![Page 6: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/6.jpg)
Magnetic FieldMagnetic Field
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
![Page 7: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/7.jpg)
Meteorite/Comet Impacts
Meteorite/Comet Impacts
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
![Page 8: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/8.jpg)
Environmental HistoryWhat causes “natural” environmental
change?
Environmental HistoryWhat causes “natural” environmental
change?
Internal Changes1. Plate tectonics2. “Natural disasters”3. Atmospheric changes4. Climate change5. Rising & falling sea level
![Page 9: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/9.jpg)
Plate TectonicsPlate Tectonics
![Page 10: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/10.jpg)
Plate TectonicsPlate Tectonics
Earth’s “surface” is broken into plates
Plates move“Geology happens” where the plates interact with one another
![Page 11: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/11.jpg)
Growth of ContinentsGrowth of Continents
![Page 12: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/12.jpg)
“Natural Disasters”“Natural Disasters”
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
![Page 13: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/13.jpg)
Atmospheric ChangesAtmospheric Changes
![Page 14: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/14.jpg)
ClimateChange
ClimateChange
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
![Page 15: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/15.jpg)
Sea LevelChanges
Sea LevelChanges
![Page 16: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/16.jpg)
So why are we concernedabout “human” changes?So why are we concernedabout “human” changes?
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
![Page 17: Environmental History What causes “natural” environmental change?](https://reader036.vdocuments.us/reader036/viewer/2022062421/56649d5e5503460f94a3ebb7/html5/thumbnails/17.jpg)
ImPaCT(Ehrlich & Holdren)
ImPaCT(Ehrlich & Holdren)
Human Impact (Im) =
Population (P) x Consumption (C) x Technology (T)