Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to...
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![Page 1: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/1.jpg)
Climate & Climate Change
Ch. 21
Part 2
![Page 2: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/2.jpg)
• Here’s what you researched & presented as a evidence to support the statement that climate is changing…1. snow & ice coverage (sea ice, ice sheets… Antarctica & Greenland,
alpine/mountain glaciers) 2. atmospheric (air) temperature3. sea-surface temperature & sea-level change4. extreme/more intense weather events (droughts, floods, blizzards,
hurricanes, etc.)5. species health (ex. coral bleaching, extinctions, polar bear starvation),
skeletal/shell composition in marine organisms 6. species distribution/range (mosquitoes/insects, birds, crop locations)7. phenological trends (ex. timing of bud-burst/plant blossoming, leaf fall,
migration patterns/timing, hibernation patterns, crop growing-seasons)8. ice core data9. tree ring data
Evidence for Climate Change
![Page 3: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/3.jpg)
![Page 4: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/4.jpg)
Possible Effects of Climate Change
• recreation loss• skiing• snowboarding
![Page 5: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/5.jpg)
• decreased river flow• salmon
declines• hydropower
loss• drinking
water shortages
Possible Effects of Climate Change
![Page 6: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/6.jpg)
• decreased recharge– lower
ground water tables
Possible Effects of Climate Change
![Page 7: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/7.jpg)
•decreased planetary albedo
Possible Effects of Climate Change
![Page 8: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/8.jpg)
• changes in ocean conveyor belt• thermo-haline circulation
Possible Effects of Climate Change
![Page 9: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/9.jpg)
• affects to indigenous peoples•Hunting• transportation
Possible Effects of Climate Change
![Page 10: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/10.jpg)
• decrease in:‒ resting and birthing place for seals and walrus‒ hunting and breeding grounds for polar bears‒ foraging grounds for arctic fox, whales, caribou, &
other mammals
Possible Effects of Climate Change
![Page 11: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/11.jpg)
• coastal flooding– destruction of wetlands– damage to towns/cities
• coastal erosion
Possible Effects of Climate Change
![Page 12: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/12.jpg)
• droughts– crop losses– Increased forest
fires– flooding when it
finally does rain• due to soil
hardening increasing the amount of runoff
Possible Effects of Climate Change
![Page 13: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/13.jpg)
• floods– more landslides– more runoff• more pollution
Possible Effects of Climate Change
![Page 14: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/14.jpg)
• economic losses
Possible Effects of Climate Change
![Page 15: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/15.jpg)
Projecting Climate In the Future
• climate models– computer
programs that use past & current data to:• project what
future climate might be like• figure out why
climate is changing
http://edgcm.columbia.edu/
![Page 16: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/16.jpg)
The IPCC
The IPCC http://www.ipcc.ch/
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2007 Conclusions
• Warming of the climate system is unmistakable
• Very high confidence that the effect of human activities since 1750 is one of warming
• Human-caused warming over last 30 years has likely had a visible influence on many physical and biological systems
• Continued GHG emissions at or above current rates would cause further warming and induce many changes in the global climate system during the 21st century that would very likely be larger than those observed during the 20th century.”
http://www.ipcc.ch/
![Page 18: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/18.jpg)
Consensus?
• Do we know enough about the drivers of climate to know what causes change?
• Are we underestimating the Earth system’s complexity?
• Can models accurately simulate the complex climate system?
•Are there processes that will limit warming naturally?
![Page 19: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/19.jpg)
On the other hand…
• Arctic sea ice melting faster than predicted.
• Fossil fuel emissions exceeded most IPCC projections.
• Are assumptions about global energy use are too optimistic?
• How quickly can developing countries reduce GHG emissions?
• Calculations don’t include unexpected melting in Greenland and Antarctica.
![Page 20: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/20.jpg)
What next? What can we do?
![Page 21: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/21.jpg)
What next? What can we do?
Billions of tons of carbon emitted per year
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Produce more fuel-efficient vehicles.Reduce vehicle use.Improve energy-efficiency in buildings.Develop carbon capture and storage processes.Triple nuclear power.Increase solar power.Decrease deforestation/plant forests.Improve soil carbon management strategies .
What next? What can we do?
![Page 23: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/23.jpg)
Some Individual Actions…
Use mass transit, bike, walk, roller
skate
Tune up your
furnace
Unplug appliances or plug into a
power strip and switch it off
Buy water-saving appliances and
toilets; installing low-flow shower
heads.
Caulk, weather-strip, insulate, and replace old windows
Buy products with a U.S. EPA
Energy Star label
![Page 24: Climate & Climate Change Ch. 21 Part 2. Here’s what you researched & presented as a evidence to support the statement that climate is changing… 1.snow.](https://reader035.fdocuments.in/reader035/viewer/2022062518/56649f145503460f94c28801/html5/thumbnails/24.jpg)