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Global Warming. Stephanie Carlino. What is Global Warming?. Most debated topics on earth Significant increase in the Earth’s climatic temperature over a relatively short time period Temperature rises in recent times have been influenced or caused by human activities. What Causes It?.

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Global warming

Global Warming

Stephanie Carlino


What is global warming
What is Global Warming?

  • Most debated topics on earth

  • Significant increase in the Earth’s climatic temperature over a relatively short time period

  • Temperature rises in recent times have been influenced or caused by human activities


What causes it
What Causes It?

  • Increase in the greenhouse effect

  • Greenhouse effect is not bad by itself; it’s what allows the Earth to stay at a temperature that life can survive at

    • Without the greenhouse effect Earth would look like Mars

  • Sun’s rays heat the Earth, 1/3 of the sun’s energy bounces off Earth’s surface

    • Gases in the atmosphere absorb some of this heat


  • This increase has upset the natural balance and created an enhanced greenhouse effect

  • Stronger greenhouse effect = global warming

  • CO2 estimated to have caused 70% if enhanced greenhouse effect


Polluting our world
Polluting Our World atmosphere in recent years because of human activities

  • Last century more fossil fuels have been burned all over the world (coal, oil, natural gases)

  • They release pollutants (I.e. CO2 and other gases)

  • Problem: most places in the world depend on fossil fuels as their source of energy


  • Warmer oceans = stronger storms atmosphere in recent years because of human activities

  • Science text books use to say “It’s impossible to have hurricanes in the South Atlantic”

    • In 2004, after a hurricane hit Brazil, textbooks were rewritten

  • 2005 broke all records for storms in Western Atlantic

    • 27 named storms, 14 hurricanes, 7 major hurricanes

    • Out of the 7 major ones, 3 reached a category 5 storm



Endangering species
Endangering Species sea levels to rise

  • Global warming has a huge effect on ecosystems

  • Animals and plants that live within each habitat will begin to suffer

  • Worry that may lead to a decline in biodiversity

  • Some species endangered now may face extinction



Polar bears are drowning in significant numbers due to them having to swim longer distances from floe to floe

If ice continues to melt, they will have to find a different way to survive

Some say they can adjust to this and live like the brown bears in Alaska

Others fear they may simply die out



Health
Health could be greatly affected by global warming

  • Affect human health across the world

  • Experience a number of worsening health threats during our lifetime

  • Due to diminishing air quality and degradation of food and water supplies to increasing levels of allergens and catastrophic weather events

  • Urgent action can help us avoid the worst of these impacts


Extreme Storms: could be greatly affected by global warming

  • Global warming has caused more hurricanes and intense storms in the North Atlantic during the last several decades

  • Storms damage basic infrastructure; moisture leads to mold growth that can cause allergies and respiratory illnesses

  • Wetter and warmer conditions may increase waterborne bacterial diseases like cholera and typhoid


Heat Waves: could be greatly affected by global warming

  • Frequency of heat waves increase because of global warming

  • Temperature increase leads to increase in deaths and illnesses from heat exhaustion, heatstroke, cardiovascular disease and kidney disease

  • Cause most harm on the elderly and very young children


Air Pollution: could be greatly affected by global warming

  • Rising temperatures increase ozone smog

  • Increased levels of ground-level ozone smog means increased number of people going to the hospital with respiratory diseases like asthma

  • Will worsen health of people suffering from cardiac or pulmonary disease


Pollen Allergens could be greatly affected by global warming

  • Higher levels of CO2 could cause allergenic pollen season to start earlier, last longer and become more intense

  • Increase in airborne pollen could cause people with seasonal allergies to experience worse symptoms like hay fever and asthma


Mosquitoes: could be greatly affected by global warming

  • Climate change affect pattern of diseases like malaria, West Nile virus, dengue fever and Lyme disease

  • Warmer temperatures and increased rainfall associated with the increases of occurrences and transmissions of insect-borne diseases

  • Warmer temperatures allow for diseases to expand range into once cooler regions


Drinking Water: could be greatly affected by global warming

  • Heavy rainfall events associated with outbreaks of water-borne diseases caused by parasites

  • Impact of global warming on water safety will be the most sever in developing countries where water treatment is less available


Water and Food Supplies: could be greatly affected by global warming

  • Global warming worsens number of floods and droughts

    • Threaten availability of water for drinking and irrigation

  • Droughts diminish food variety, nutritional content and availability

    • Contribute to malnutrition, infectious diseases and starvation


Environmental Refugees: could be greatly affected by global warming

  • Sea-level rises lead to estimated 50 million people to have to leave their homes in next 10 years due to floods, droughts and desertification

  • Health will be affected because of urban crowding, lack of water and transmission of infectious diseases


Controversy
Controversy could be greatly affected by global warming

  • Most debated topic on Earth

  • Some people don’t even think that global warming is happening because:

    • Don’t think data show measurable upward trend in global temperatures

      • Not enough long-term historical climate data or because data we have us not clear


Controversy cont d
Controversy Cont’d could be greatly affected by global warming

  • Think that data is being interpreted incorrectly by people who are worried about global warming

  • Increase in global temperatures is natural

  • Some scientists recognize global warming but don’t think it is something to worry about

    • Say Earth is more resistant to climate change than we think

    • Plants and animals will simply adapt


What can we do
What Can We Do? could be greatly affected by global warming

  • Deforestation contributes to global warming – afforestation (planting of trees) could help limit it

  • Thought it will be very difficult, stop pumping so much CO2 into the atmosphere

  • Use renewable sources

    • Nuclear power, solar power etc.

  • Look for a good mix instead of discluding any one of them

  • Use more microsystems

  • Use energy more wisely

  • Travel more sensibly



The End undoubtedly be more difficult by 2020


Bibliography
Bibliography undoubtedly be more difficult by 2020

Global Warming. (n.d.). Retrieved May 4, 2009, from

http://www.ncdc.noaa.gov/oa/globalwarming.html

Global Warming and Our Health [Data file]. (2008). Retrieved from http://www.nrdc.org/globalwarming/preparedness.pdf

Gore, A. (2006). An Inconvenient Truth. Rodale.

Morris, N. (2007). What If We Do Nothing? World Almanac Library.

Strickland, J., & Grabianowski, E. (n.d.). How Global Warming Works [Data file]. Retrieved May 2, 2009, from http://www.realclimate.org


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