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7 Environmental Problems

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on 12 October 2013

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Transcript of 7 Environmental Problems

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli
7 Environmental Problems
that are WORSE than we THOUGHT

1. Mammal Extinction
25 % of the world mammal species are at risk of extinction.

Crucial areas:
Southeast Asia
Central Africa
Central and South America
2. The Ocean Dead Zones
3. Collapsing Fish Stock
Fisherman have been pulling such a huge quantity of fish from the oceans that we’re heading toward a global collapse of all species currently fished – possibly as soon as the year 2048.

4. Destruction of the Rain Forest
Rainforest is home to 50% of all plants and animals on earth.

It is the earth living lungs- it breathes in carbon dioxide and breathes out oxygen.

5. Polar Sea Ice Loss
Is melting of sea ice at an unprecedented rate and it’s not slowing any sign of slowing down.

Due to human activities, The amount of CO2, released into the atmosphere has been rising extensively during the last 150 years.

Imbalance in the worlds food chain.
“ When a predator disappears, the prey will multiply, when prey dies out, the predator will see its ranks decrease as well”

Characterized by lack or completely zero oxygen.

Since 1960, the number of dead zones has doubled every 10 years
Excess nitrogen from farm fertilizers
Emissions from vehicles and factories

Many marine species die off at low oxygen levels.
Destroy marine species habitat

29% of species have been cause by:
Over fishing
Destructive fishing practices

Shortage in fish supply
Unemployment for fishermen
100% collapsing fish stock by mid-century.

Conversion of forest to Agriculture lands
60% of accelerate global warming
The forest contains more than 50% of all plants and animals species in the world. Destroying the forest will destroy these species forever.
Soil erosion
Global warming

Loss of habitat for seals and polar bears
Climate change
Rising sea level
Beach erosion
Island nation will be drowned

6. CO2 Levels in the Atmosphere
Greenhouse gas emissions caused by our modern way of life:
Power plants
Burning of fossil fuels

Polar sea ice loss
Global warming
Climate change

Shortage of resources

7. Population Explosion
Overpopulation – is defined as the condition of having more people that can live on the earth in comfort, happiness and health and still leave the world a fit place for future generations.

All human needs clean air, adequate water, food, shelter .

Loss of habitat

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