climate change: temperature and coral reefs. climate change weather vs. climate weather: day to day...
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Climate Change:Temperature and Coral Reefs
Climate ChangeWeather vs. Climate
Weather: day to day changes in temperature, rainfall, cloudiness, moisture
Climate: long term changes in weather patterns on our planet
Effects of climate change: Warmer sea surface temperatures (today’s activity)Sea level riseDrought (water shortage), floodingOcean acidification
Pacific Islands Ocean Observing System
Divers work on sensors at the Kilo Nalu Reef Observatory which monitor
water quality and temperature
HIOOS Coastal Wave
Buoy Measurements
Wave buoys monitor wave
height, direction, and period around the Pacific Ocean.
CO2 Buoy off the south shore of Oahu, Hawaii
Photo courtesy of R. David Beales, UH Creative Services
TemperatureCarbon Dioxide
SalinityOxygen
ChlorophyllTurbidity
CO2 and Climate ChangeGreenhouse effect – makes life
on Earth possibleCO2 comes from natural and
man made sources:Natural: animal respiration,
volcanoesMan made: burning fossil fuels
(cars, planes, electricity), deforestation (cutting/burning trees)
Too much CO2 causes too much warming
Video
Plants – PHOTOSYNTHESIS (take up carbon dioxide and give off oxygen)
Animals – RESPIRATION (take up oxygen and give off carbon dioxide)
What is coral?
Plant? Animal?
Coral: a happy duo
• Zooxanthelle (algae) provide food & oxygen
• Coral provide CO2 & protection
• Calcium carbonate skeleton
Coral Bleaching
Mass Coral Bleaching
Temperature!