Common culprit? <ul><li>Headlines extracted from News Sources around the world: </li></ul><ul><li>Heat wave claims 44 live...
Global Warming Noorudeen T.
Agenda <ul><li>What is Global Warming? </li></ul><ul><li>Causes </li></ul><ul><li>Effects </li></ul><ul><li>How to reduce ...
What is Global Warming <ul><li>Refers to the increase in average surface and ocean temperature in recent decades </li></ul...
Primary Causes <ul><li>CO 2  emitted by power plants, automobiles, buildings, aircrafts, etc. </li></ul><ul><ul><li>contri...
Effects <ul><li>Impact on Habitat   </li></ul><ul><ul><li>destruction of Arctic/Antarctic habitats </li></ul></ul><ul><ul>...
How to reduce/reverse it? <ul><li>Reduce greenhouse gas emissions from industries, power plants, etc. </li></ul><ul><li>Ma...
What role can we play in this? <ul><li>Reduce consumption, recycle and reuse: conserve wherever possible – it costs energy...
We must change now or else our World will change forever beyond recognition! But remember, We can still pull it off! Thank...
Upcoming SlideShare
Loading in …5
×

Global Warming

359 views

Published on

Published in: Education, Technology
  • Be the first to comment

  • Be the first to like this

Global Warming

  1. 1. Common culprit? <ul><li>Headlines extracted from News Sources around the world: </li></ul><ul><li>Heat wave claims 44 lives in Southeast, Midwest US (CNN 2007) </li></ul><ul><li>Over 15,000 dead in August in France due to warm summer (CNN, 2003) </li></ul><ul><li>Years since 1938 are the warmest in the last 12,000 years (Nature, 1992) </li></ul><ul><li>Tropical storms doubled in the Atlantic over the past century – Study (CNN 2006) </li></ul><ul><li>90% mortality in Indian and Pacific corals (San Francisco Chronicle, 2006) </li></ul><ul><li>World's Coral Reefs Will be Dead Within 50 Years (Environmental News Network, 2001) </li></ul><ul><li>Artic Ice 40% lost in last 30 years (N.Y Times 1999) </li></ul><ul><li>Gangotri Glacier melt accelerating at 30 m per year; it was 7 m in 1842 (World Watch Institute's Vital Signs 2000 report) </li></ul><ul><li>So, who is the culprit behind all these natural calamities </li></ul>Global Warming
  2. 2. Global Warming Noorudeen T.
  3. 3. Agenda <ul><li>What is Global Warming? </li></ul><ul><li>Causes </li></ul><ul><li>Effects </li></ul><ul><li>How to reduce or reverse it? </li></ul><ul><li>What role can we play in this? </li></ul>
  4. 4. What is Global Warming <ul><li>Refers to the increase in average surface and ocean temperature in recent decades </li></ul><ul><li>Has risen by about 0.74 ± 0.18 °C in the 20 th Century </li></ul><ul><li>Caused due to increased levels of greenhouse gases (CO 2 , CH 4 , N 2 O, CFC, etc) in our atmosphere </li></ul><ul><li>Also referred to as “Climate Change” </li></ul><ul><li>One of the biggest challenges facing our planet </li></ul><ul><li>Growing evidence linking climate change to various extreme weather conditions around the world </li></ul>
  5. 5. Primary Causes <ul><li>CO 2 emitted by power plants, automobiles, buildings, aircrafts, etc. </li></ul><ul><ul><li>contributes about 60% to global warming </li></ul></ul><ul><li>Deforestation - about 34 million acres of trees are cut every year </li></ul><ul><ul><li>contributes about 25% to global warming </li></ul></ul><ul><li>Other gases like Methane, Nitrous Oxide, CFCs, etc emitted during fossil fuel production and during large-scale farm production </li></ul><ul><ul><li>contributes about 14% to global warming </li></ul></ul>
  6. 6. Effects <ul><li>Impact on Habitat </li></ul><ul><ul><li>destruction of Arctic/Antarctic habitats </li></ul></ul><ul><ul><li>expanding deserts, melting glaciers </li></ul></ul><ul><ul><li>rising sea levels submerge low lying coastal areas </li></ul></ul><ul><li>Impact on wildlife </li></ul><ul><ul><li>a quarter of all plants, animals and mammals will go extinct by 2100 </li></ul></ul><ul><ul><li>1 million species are threatened with extinction </li></ul></ul><ul><ul><li>Affects migration and hibernation cycles of animals </li></ul></ul><ul><li>Impact on humans </li></ul><ul><ul><li>About 154,000 people die every year due to global warming </li></ul></ul><ul><ul><li>spread of tropical diseases </li></ul></ul><ul><ul><li>extreme storm, flood, drought and heat-wave conditions </li></ul></ul><ul><ul><li>drying up of glacier-fed rivers affecting water & food security </li></ul></ul><ul><ul><li>rising sea levels affecting coastal population (expected to rise by about 3 ft by 2100) </li></ul></ul>
  7. 7. How to reduce/reverse it? <ul><li>Reduce greenhouse gas emissions from industries, power plants, etc. </li></ul><ul><li>Manage transportation better to reduce emissions from automobiles </li></ul><ul><li>Switch to renewable energy sources like wind, sun, etc. </li></ul><ul><li>Save forests, plant more trees </li></ul><ul><li>Reduce consumption and conserve natural resources </li></ul>
  8. 8. What role can we play in this? <ul><li>Reduce consumption, recycle and reuse: conserve wherever possible – it costs energy to produce everything right from the food you eat to rockets that is sent to space. </li></ul><ul><li>Drive smart: Don’t buy gas-guzzling automobiles; use public transport; otherwise car-pool to work </li></ul><ul><li>Use less heat or air conditioning, turn off appliances when not in use; use CFL bulbs instead of incandescent bulbs </li></ul><ul><li>Plant trees </li></ul><ul><li>Most of all spread the message! Awareness levels are currently very low. </li></ul>
  9. 9. We must change now or else our World will change forever beyond recognition! But remember, We can still pull it off! Thank You

×