The Earths Sixth Greatest ExtinctionBy Igor Milgram, Derrin Miller, Johny, Scott Richmond

The 5 Past ExtinctionsOrdovician-Silurian extinction: 439 million years Late Devonian extinction: 364 million years agoPermian-Triassic extinction: about 251 million years agoEnd Triassic extinction: roughly 199 million to 214 million years agoCretaceous-Tertiary extinction: about 65 million years ago

Current ExtinctionThe current extinction is beginning to rival all of the last five extinctions.It is the first extinction in earths history that is cause by a biotic source instead of physical cause.

The Current StatsWe are currently losing 40,000-50,000 species a yearThat is roughly 137 a day.Since 1600, 83 mammals species and 113 birds have become extinct.

All the statsThreatened animal and plant species : 11,046Known species humans have forced to extinction in past 500 years: 816Threatened animals and plants in the United States: 99820% Known Amphibian species 24% Known of Mammals25% Known of Reptiles30% Known of Fish

The First CauseThe invention of Agriculture is the first cause of this problem.It let us become separated from other species.We changed the earth for our needs.

Domino EffectAll species have an effect on each otherIf one species dies it could cause the co-extinction of another speciesSome species directly affect the health of hundreds of other species.

Current CausesPollutants Pesticides Ultra-violet radiation Climate changeHabitat loss from agriculture and citiesHunting and PoachingMan Made BordersMany more

FencesHumans love to fence off space they say belongs to them.This stops animals from getting to needed food sources.Fences cuts off food sources for animals which leads to village attacks, which leads to more killing of animals.

The Disappearing ForestsRoughly 21% of the land-mass is covered with closed-canopy forests There are only formal bans on 9% of the worlds forests.The Earth's forests hold over 50% of all known species. Top Five CountriesRussia: 23.3% Canada: 12.8%Brazil: 12.6% United States: 8.2%Democratic Republic of the Congo: 4.0%

Why?

Is there a way out? The world needs international cooperation to sustain the environment.Countries ban the cutting down forestsReduce Co2 emissions.Reduce Human Population.End destruction of land for Agriculture.

United Nations Environment Programme Monitors status of global environment Making international agreements Combining economic development and environmental protection.Allows the transfer of knowledge and technology for sustainable development.

What can each of us do?Reduce our carbon footprintsLearn about Local endangered speciesRECYCLE!!!Protect wildlife habitat.