Bio_Conservation_Project

Bio_Conservation_Project - Global Warming Global Warming...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Global Warming Global Warming can lead to can lead to Mass Mass Extinctions Extinctions Bisc 120, Fall 2007 The Gr eat Dying- Biggest mass extinction in Earths geologic history- Occurred 250 million years ago, at end of Permian Era- Wiped out 90% of ocean species & 70% of land species Dispute over cause of the Great Dying- global warming caused by massive and prolonged volcanic activity o resulted in Siberian Traps large amounts of carbon dioxide released into the air from open volcanic fissures triggered a greenhouse effect, warming the earth & depleting oxygen from the atmosphere caused environmental deterioration & collapse o warming of the earth disabled the oceans ability to refresh their oxygen supply caused the seas to go sterile destroyed marine life allowed anaerobic bacteria to release poisonous hydrogen sulfide swamp gas into the air How Volcanic Eruptions Can Lead to Mass Extinctions http://palaeo.gly.bris.ac.uk/Palaeofiles/Per mian/booty4.gif Dispute over cause of the Great Dying Caused by the impact of an asteroid or comet o similar to the one that triggered the extinction of dinosaurs 65 million years ago http://img.dailymail.co.uk/i/pix/2007/09_01/dinoroidSPL0509_4 68x283.jpg How it Relates to Today- I f nothing is done about emissions of greenhouse gases (mainly carbon dioxidechief cause of...
View Full Document

This note was uploaded on 02/19/2008 for the course BISC 120 taught by Professor Webb,wetzer,? during the Fall '07 term at USC.

Page1 / 14

Bio_Conservation_Project - Global Warming Global Warming...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online