earth day 2007

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Dr. Andrew Wallace PhD

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NET’s 2007 Earth day talk looking at why we need sustainability and what characteristics a sustainable society has.

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Page 1: Earth Day 2007

Dr. Andrew Wallace PhD

Page 2: Earth Day 2007

Gaylord Nelson in 1970 United States Senator for Wisconsin

"The story goes that Earth Day was conceived by Senator Gaylord Nelson after a trip he took to Santa Barbara right after that horrific oil spill off our coast in 1969. He was so outraged by what he saw that he went back to Washington and passed a bill designating April 22 as a national day to celebrate the earth.“

Santa Barbara Community Environmental Council.

Page 3: Earth Day 2007

22 April 1970 20 million people

Now 500 million people 175 countries

Page 4: Earth Day 2007

To inspire awareness of and appreciation for the Earth's environment

Page 5: Earth Day 2007

The other Earth Day: 21 March UN

"May there only be peaceful and cheerful Earth Days to come for our beautiful Spaceship Earth as it continues to spin and circle in frigid space with its warm and fragile cargo of animate life.“

United Nations Secretary-General U Thant, March 21, 1971

Page 6: Earth Day 2007

What’s the problem? Why? A sustainable society

Page 7: Earth Day 2007

Global Warming Climate change

Peak Oil Ecological foot print

Page 8: Earth Day 2007
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How do we know? Ice core records Pollen Insects Glaciers

Page 11: Earth Day 2007

What will happen in the future? Glacier retreats Ice shelf melting Sea level rising More severe weather storms Droughts

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Why does it matter? Plastics Fuel Transport Pesticides Food Medication

Civilisation as we know it!

Page 15: Earth Day 2007

No know single replacement Wind Nuclear Water Solar Bio fuels

Page 16: Earth Day 2007

How much land and water do we need to support ourselves?

How many people? What sort of life style do we have?

Page 17: Earth Day 2007
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Energy Consumption in kilograms of oil equivalent (kgoe) per person per year per country (2001 data).

Page 19: Earth Day 2007

CO2 per capita per country

Page 20: Earth Day 2007

Bolivia Deforestation

Page 21: Earth Day 2007

Why do we have the problems we have? Why do we have global warming? Why do we have a problem with the oil? Why do we have a problem with our eco-

footprint?

Page 22: Earth Day 2007

CO2 and other green houses gasses Need for land Need to keep our economy going

Page 23: Earth Day 2007

Government People Groups and organisations Rules and regulations International connections

Page 24: Earth Day 2007

All these things, groups, people, organisations all interact

We have no one centralised control mechanism

What we get comes as a by-product of the way things interact

That includes global warming, peak oil and our eco-foot print!

Page 25: Earth Day 2007

What characteristics would a sustainable society have?

Population? Production? Agriculture?

Page 26: Earth Day 2007

More and more people means more and more people to feed

More and more goods to produce More and more roads to make

Page 27: Earth Day 2007

A sustainable society would need to maintain a constant population level

Balance its production demand Reduce demand Reuse Recycle Localise

Page 28: Earth Day 2007