1. Indicators & Effects of Climate Change
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2. Global Warming
NASA and NOAA (National Oceanic & Atmospheric Administration) scientists ranked 2014 as Earth’s warmest year since 1880.
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3. Indicators
Sea ice cover was at its lowest in February Watch this NASA video.
This graph is from NOAA. March is the month of maximum ice extent, September is the minimum.
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4. Impacts of Melting Ice…
Reduced habitat for polar bears, walrus, seals, etc.
Livelihood of communities living in Arctic is affected (e.g., Inuit)
Rising sea levels
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5. More CO2…
A year in the life of CO2, another interesting video from NASA showing CO2 emissions over the year.
Causes acidification of oceans (carbonic acid), which affects fish populations, formation of corals, etc.
Image of coral damaged by acid:

6. Disease
Range of disease-causing animals is increased due to global warming.
Outbreaks of many infections increase during warmer weather.
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7. Extreme Weather
Changes in temperature lead to changes in wind & precipitation.
From desertification & droughts to intense tropical storms like Katrina.
U.S. Air Force photo of Katrina:

8. Biotic Effects
Plants and animals that are adapted to particular biomes may no longer be able to survive there.
Dry conditions may cause deforestation due to forest fires.
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Ratio of gray and reddish-brown tawny owls has changed as temperatures have gotten warmer in Czech Republic

9. Video PBS Global Warming The Signs & the Science