Chapter 16-

Evidence supporting Global

warming

Chapter 16-

Evidence supporting Global

warming

Evidence suggesting Global warming

• Reduction in size of glaciers worldwide

• Rise in global sea level

• Rise in global temperature

• Rise in oceanic temperature

Evidence suggesting Global warming

• Reduction in size of glaciers worldwide

• Rise in global sea level

• Rise in global temperature

• Rise in oceanic temperature

Statements of fact concerning the last two decades of the twentieth centuryStatements of fact concerning the last two decades of the twentieth century

Global temperature change over the last century

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

1990’s saw a positive sea level rise1990’s saw a positive sea level rise

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

1

2

Glacier ice spall sequence on Mt Kilimanjaro

Glacier ice spall sequence on Mt Kilimanjaro

Before…

After…

Which way to the beach?

Increase in global temps leads to melting of ice on earth

Causes a rise in sea level

Causes a shift in coastline position

Which way to the beach?

Increase in global temps leads to melting of ice on earth

Causes a rise in sea level

Causes a shift in coastline position

Diminishing sea ice

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

Why worry?

•Regardless of what is responsible, climate is changing

•If people contribute, how much does it influence it

•Only one earth- Let’s not mess it up for our kids and grandkids!

•If people do not contribute- what THEN!? Yikes!

•Can we stop the earth from becoming intolerably warm?

Can technology prevent catastrophic change?

It probably could given enough time and money

•unfortunately- Not enough time or enough money!

Why worry?

•Regardless of what is responsible, climate is changing

•If people contribute, how much does it influence it

•Only one earth- Let’s not mess it up for our kids and grandkids!

•If people do not contribute- what THEN!? Yikes!

•Can we stop the earth from becoming intolerably warm?

Can technology prevent catastrophic change?

It probably could given enough time and money

•unfortunately- Not enough time or enough money!