The website you will be accessing is considered the foremost authority on global warming, predictions, and effects. In order for you to know what the "authorities" say, you need to be exposed to this report!
Assignment: Use the link to the right to access entitled "IPCC 2007 Report" (or click here). You are NOT expected to read the whole report, and I would not anticipate you to be able to understand all of it. However, you ought to pick up main ideas by reading titles, bullets, and interpreting the diagrams and charts.
Following your brief review (about 10-20 minutes) of the website, respond to this post by listing six things you have learned or found interesting from ths report. Please use your own wording--do NOT copy the report's words!
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13 comments:
since 1978 the anual artice sea ice extent has srunk by 2.7% every decade.
I learned:
In order for a change in temperature to be called a “climate change,” it has to be measurable and over a long period of time (decades.)
Greenhouse gas emissions from humans has increased 70% since the 1970’s
Changes in global warming in the 21st situation would very likely be larger than the changes seen during the 20th century.
If global temperatures rise more than 1.5-2.5 degrees Celsius, about twenty to thirty percent of plant and animal species are likely to be at increased risk of extinction.
Cardio-Respiratory diseases may be affected by global warming due to higher levels of ground level ozone in urban areas.
Globally, if the temperature increases 1-3 degrees Celsius, food production is supposed to increase. Anywhere above that would decrease food production.
observational evidence shows the increase of cyclone activity in north alantic since 1970.
climit change is strongly affecting terrestial biolagiacal systems
the abundence of fish and other marine life in certian locations is changeing do to the increase in temp
1 by mid-century the ecosystem will no longer be able to absorb CO2
2 if temperatures raise much higher 20-30% of species will be in danger of extinction
3 higher altitudes will become better for growing crops due to temperature increases
4 lower altitudes will become worse for growing crops due to temperature increases
5 the climate change will bring benefits to in temperate areas
6 the changes that will occur with the water cycle will affect runoff
Jordan Tardie I thought it was very interesting that Al Gore got 90% of his facts for his video from this scientific report.
Since 1978 the annual average Arctic sea ice extent has decreased by 2.7% every 10 years, with even greater decreases of 7.4 in the summer.
It is extremely likely that cold nights, cold days and frosts are becoming less frequent over a lot of areas. Hot days and hot night have become more frequent.
Enlargement and increased numbers of glacial lakes
Less ground stability in permafrost regions and rock avalanches in mountain regions.
Changes in Antarctic and Arctic ecosystems.
not all suspected effects of climit change can be provine
green house gases are the force behind climit change.
Eleven of the last twelve years have been among the warmest years in history.
With the global warming also comes the rise in ocean levels.
Lots of snow and ice is melting all over the world which is changing water levels.
From all of these weather changes millions of people’s lives are projected to be affected with malnutrition and lack of water and shelters
20 to 30% of animal species are expected to become extinct when the rise in temperature reaches 1.5 to 2.5 degrees
Over the course of this century the carbon uptake is likely to peak and then fall by mid-century. This would make climate change even worse
Green house gasses emmited from humans has increased 70% since the 70's
If global temperatures rise 1.5 degrees
1. Changes in the atmospheric concentrations of GHGs and aerosols, land cover and solar radiation alter the energy balance of the climate system and are drivers of climate change.
2. 20 to 30% of plant and animal species assessed so far are likely to be at increased risk of extinction if increases in global average temperature exceed 1.5 to 2.5 C.
3.Coasts are projected to be exposed to increasing risks.
Donovan Trujillo
More then 20% to 30% of the worlds species of animal are more likely to run into extinction.
1) Temperature increases have been substantially higher at the poles than the equator.
2) Ocean Temperatures show a rise quite similar to that of temperature increases elsewhere
3) Significant amounts of Biological change can be attributed directly to the current warming trend.
4) Weather phenomena such as Hail, Tornadoes, and Cyclones have been seemingly unaffected by the current warming trend.
5) 17.3% of anthropogenic CO2 emissions are caused by deforestation and decay.
6) Amounts of Methane and Carbon Dioxide recorded in 2005 present in the atmosphere far exceed the amounts recorded over the last 650,000 years.
Rylyn above - Check timestamp for verification
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