Climate Change and Global Warming: Is it too

Late?

Climate Change and Global Warming: Is it too

Late?Special Assembly Class 3.1

Contents: Contents:

1. What is Climate and Climate Change?2. What is global warming?3. Is global warming bad?

4. What are the greenhouse gases?5. How are extra greenhouse gases produced?

6. What's the 'ozone layer' got to do with global warming ?

7. So what could happen?8. What's being done about it?

9. What can I do?10. And Governments????????????

1. What is Climate and Climate Change?

1. What is Climate and Climate Change?

2. What is global warming?2. What is global warming?

• rise in temperature

• 6 ½ degrees warmer

3. So is global warming bad?3. So is global warming bad?• earth is naturally

warmed by sun

• atmosphere's = layers of gases

• greenhouse gases

• thermal blanket

• plants and humans survive @ 16°C

4. What are the greenhouse gases?

4. What are the greenhouse gases?

Made Up of :

Water Vapour

Carbon Dioxide

Methane

Nitrous Oxide

Ozone

Chlorofluorocarbons (CFCs)

Water Vapour (Cycle)Water Vapour (Cycle)

Evaporation

CondensationPrecipitation

Surface Runoff

carbon dioxide carbon dioxide

Methane Methane

Nitrous OxideNitrous Oxide

OzoneOzone

chlorofluorocarbons (CFCs)chlorofluorocarbons (CFCs)

5. How are extra greenhouse gases produced?

5. How are extra greenhouse gases produced?

• Burning of 'fossil fuels'

• Cutting down of forests

• Animal waste which lets off methane

6. What's the 'ozone layer' got to do with global warming ?

6. What's the 'ozone layer' got to do with global warming ?

• ozone (a type of oxygen)

• protects the earth • harmful rays called

UVB

• Sea levels rise • Melting of glaciers• Flooding• Lakes/rivers = dry up • Droughts • Plants/animals =

extinct • Severe Storms

7. So what could happen?7. So what could happen?

7. What's being done about it?7. What's being done about it?• NOT EVERY ONE

AGREES!!!!!!!!

• Earth Summit • Rio de Janeiro (1997)

• UN- Kyoto, Japan • February 2003, the

British Government = Green Energy

• IPCC Report 2/2/07

Intergovernmental Panel on Climate Change (IPCC) Report 2/2/2007

www.ipcc.ch

Intergovernmental Panel on Climate Change (IPCC) Report 2/2/2007

www.ipcc.ch• 2500+ scientific expert reviewers• 800+ contributing authors and• 450+ lead authors from• 130+ countries• 6 years work• 4 volumes• 1 report

Past Warnings (IPCC Report )Past Warnings (IPCC Report )

• Over past 100 years• Global surface temperatures = ↑ by 0.74°C• 11 of the past 12 years; warmest years on

record• Human activity is ‘very likely’ the cause of

most of this (90%)• Global warming is evident• Ocean warming extends to 3,000m in depth• Mountain glaciers/snow are declining• Sea level rose globally by 1.8 mm/y (1961-

2003)• Since 1970s droughts intensified

Forecast For 21st Century (IPCC Report)

Forecast For 21st Century (IPCC Report)

• By 2100 global average temperature = 1.1°C – 6.4 °C

• Sea levels = rise by between 18 – 58mm• Higher Co2 levels• Snow cover will contract• Heat extremes, heat waves, heavy rain• Typhoons, Hurricanes, Tornadoes

     Heat waves and periods of unusually warm weather      Ocean warming, sea-level rise and coastal flooding      Glaciers melting      Arctic and Antarctic warming

     Spreading disease      Earlier spring arrival      Plant and animal range shifts and population changes      Coral reef bleaching      Downpours, heavy snowfalls, and flooding      Droughts and fires

Malta, Gozo, Comino…Malta, Gozo, Comino…

“↑ 3°C in 100 years• No Winter• Rain = 20% less• Water Shortage• Sea Level Rise• Diseases• Loss of Agricultural Land• Loss of Biodiversity (Plants and Animals)• HEAT WAVES”

By Prof. Charles V. Sammut

9. What can I do?9. What can I do?

• Re-cycle glass newspapers…

• Re-use plastic…

• Persuade mum/dad

• Brick into your toilet flashing

• Use paper X2

• packaging free products

• unwanted gifts = charity shop

• kettle up with the amount of water you need

• TV or video = off

• 1 car = lots of persons

• washing machine @ 40 °C

• Switch lights off

• Cycle to places!

• showers not baths

And Governments????????And Governments????????

Wave power (Renewable Energy)

Wave power (Renewable Energy)

Waves can produce energy either offshore or on coastline plant

Wind power (Renewable Energy)

Wind power (Renewable Energy)

Wind can be used to drive turbines which in turn produce electricity

Water power (hydro electricity-Renewable Energy)

Water power (hydro electricity-Renewable Energy)

Water is used to drive turbines to produce electricity

Other ways of making Green Energy:

Other ways of making Green Energy:

Small scale and domestic solar energy are being developed

Global warming linksGlobal warming links

• Hot planet: try SafeClimate

• Flying off to a warmer climate?

• Global Warming: Early warning signs

• Climate Ark - Climate Change Portal

• ClimatePrediction.net

• Friends of the Earth

• Greenpeace International

• Rocky Mountain Institute

Thank you for your attention Thank you for your attention

THE END THE END