1. Which is the odd one out and what connects the others?B D F E G

2. Global Temperature Change
Key Question: How and why has global temperature changed and where’s the evidence?
Key Words:
Enhanced Greenhouse Effect
Greenhouse Gases
Methane
Carbon Dioxide
CFC's
Ice Cores
Global Warming
HW: Research What happened in London 4th Feb 1814 and explain why it is linked to today’s lesson?

3. To Start….. The Greenhouse Effect
Animation
Watch the following animation and then…
explain the greenhouse effect in your own words on a mini
Whiteboard. Use a diagram

4. The Greenhouse Effect Solar radiation arrives from the sun as
……………. …light, while some is
……………………. back to space.
visible
reflected
Infra red
………….. ……….radiation is reflected off
the …………… surface where it
becomes trapped by the
……………….……………….. gases in the
atmosphere.
Visible light reflected back
To space
Earth’s
greenhouse
………….. is the main greenhouse
gas and is released from volcanoes
and mans burning of …………….. fuels
CO2
Infra-red trapped by
Greenhouse gases
fossil
Methane
………………….. and CFC’s are also
GH gases.

5. The Enhanced Greenhouse Effect
man
The enhanced GH effect occurs due to ……………. burning fossil fuels and from
cattle releasing ………………………………
methane
The enhanced GH effect coincides with the ………………….. …………………… 150 years ago.
Industrial
Revolution
We have records of increases CO2 levels over the last 150 years from
…………… cores collected from the
Arctic and Antarctic.
ice

6. Evidence for Temperature Rise
Ice core Temperature and CO2 Record

7. Conclusion
There is a correlation between CO2 and temperature records.
The ice core records show us that when CO2 levels are high so are temperatures and vice versa!
Ice cores therefore give us good evidence for temperature change and the cause of that change!!!