Pioneers of Climate Change Research Svante Arrhenius Ralph Keeling Roger Revelle.

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Presentation transcript:

Pioneers of Climate Change Research Svante Arrhenius Ralph Keeling Roger Revelle

Greenhouse Gasses: Water Vapor Carbon Dioxide* Methane* Nitrous Oxide* *Increasing Due To Human Activity Water and Other Greenhouse Gasses Trap Heat to Warm the Planet

Gaia Hypothesis – Earth is a Self-Regulating System of Feedback Loops James Lovelock Lynn Margulis Daisy World

Modern Era – Oxygen is High, Carbon Dioxide Very Low Much of Carbon Tied Up in Fossil Fuels (Oil, Gas, Coal, Peat) Formed In Carboniferous Per, MYA

Release of Carbon Dioxide From Fossil Fuels and Deforestation Is Responsible for Global Warming Atlantic Ocean Heat Sink IPCC Projections Hiatus

Radioactive carbon-isotope dating of the deep waters indicates that from the time of sinking into the deep until its return to the surface, a period of several hundred or even up to 1000 years will pass. Ultimately Excess Carbon Will Be Absorbed into Oceans and Other Long Term Sinks

Consequences of Global Warming Include Sea Level Rise

Changes in Precipitation And Other Weather Patterns Ecological Disruptions Economic Disruptions

Positive (Reinforcing) Feedback Effects

Negative Feedback Loops Also Possible

More Harmful Algae Blooms Coral Bleaching Ocean Acidification Positive Feedback Through CO 2 Release from Coccolithophore Blooms Impacts of Climate Change on Algae in Oceans

Melting of Methane Hydrates Failure of Gulf Stream Rapid Sea Level Rise from Melting of Ice Sheets Runaway Greenhouse Effects Are Possible….

Melting of Ice Caps Predicted In 1958

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