What are the physical effects of climate change?

Question

Geography assessment :) i need to know the physical effects of climate change

Answer 1

30,000 Anti-Global Warming Scientists Can’t Be Wrong Written by Fred Dardick, CFP | 30 April 2010





Nature Magazine, the academic journal that introduced the world to X-rays, DNA double helix, wave nature of particles, pulsars, and more recently the human genome, is set to publish a paper in June that shows atmospheric carbon dioxide (CO2) is responsible for only 5-10% of observed warming on Earth.



As explained by the paper’s author Professor Jyrki Kauppinen, “The climate is warming, yes, but not because of greenhouse gases.”



For the preeminent scientific journal in the world to publish Kauppinen’s work shows conclusively that Al Gore’s much touted “scientific consensus” supporting human-caused global warming is a myth.



Eco-censors and the global warming hoax

For years scientists have been trying to get out the message past the eco-censors that there are thousands and thousands of them who do not buy into the global warming hoax.



Since 2009 more than 238 physicists including Nobel Prize winner Ivar Giaever and professors from Harvard, MIT, Princeton, UCLA and dozens of other top universities and research institutions have signed an open letter addressed to the Council of the American Physical Society saying the scientific data did not support the conclusion that increased CO2 concentrations are responsible for global warming.



In 2009 over 700 international scientists, including many current and former UN IPCC members, joined with Senator Inhofe in a Senate Minority Report to express their doubts over man-made global warming claims.



In the report U.S. Government Atmospheric Scientist Stanley B. Goldenberg was quoted as saying “It is a blatant lie put forth in the media that makes it seem there is only a fringe of scientists who don’t buy into anthropogenic global warming.”



In the largest effort to date to document global warming dissent in the scientific community, 31,486 Americans with university degrees in science - including 9,029 PhD, 7,157 MS, 2,586 MD and DVM, and 12,714 BS or equivalent - have signed on with the Global Warming Petition Project to state “the human-caused global warming hypothesis is without scientific validity.”



Many of the best and brightest minds in the United States and around the world are in total agreement: The so-called global warming “scientific consensus” is a complete fabrication and does not exist.

Answer 2

No one denies that the climate can and does change. It's mans role in this change that raises the debate. If the planet has warmed and cooled in the past without man being a factor, why is man suddenly to blame? As far as physical evidence let's look at the Nile Valley. At the time the pyramids were built the valley was lush and plant covered. Did the building on the pyramid cause the valley to become a desert? Doubtful

Answer 3

You have some excellent answers here, especially from Antarcticice. He does state my position well with regards to the Greenland Vikings, and his information is fairly good. There are a few exceptions.



1) The spiegel article stated that they are now growing tubers (potatoes) in Greenland, not vegetables. I agree with his thesis that this is impressive compared to recent centuries, http://www.co2science.org/articles/V11/N5/C1.php

but it is not as impressive as growing vegetables there. In fact the Vikings (986 - 1300 CE) http://en.wikipedia.org/wiki/Greenland#Norse_settlement

did not grow potatoes, because they did not have any. Potatoes are native to the Andes, and were "discovered" by the Conquistadores in the 1530s http://extension.usu.edu/aitc/lessons/pdf/world_climate.pdf

(Bottom of page 3)

after 10 millennia of local cultivation. http://en.wikipedia.org/wiki/Potato#Peru

The potato discovery resulted in a green revolution in the northern areas of Europe http://books.google.com/books?id=YAkOAAAAQAAJ&pg=PA208&dq=potato+resisted+france+germany&lr=#v=onepage&q&f=false

and the consequent population explosion. http://www.economics.harvard.edu/faculty/nunn/files/Potatoes.pdf

This is partly because the potato is more hardy to cold climates than domesticated grains.



2) Antarcticice states correctly that grasses are hardy, and grows almost anywhere. Indeed tundras are covered with grass, but that grass is not the same as domesticated grass used for grains. The seeds are small, and uneconomical to harvest. Domesticated grasses like the barley cultivated by the Vikings are also hardy, but not like tundra grass or potatoes. I think that it would be terrific if the farmers in Greenland could start growing winter barley again, and brewing beer from it.



3) Antarcticice also states correctly that the Vikings "inhabited coastal regions in the south and south west". Indeed, they did only inhabit the Coastal areas, and did not inhabit the North and East Coast of Greenland. The Vikings grew barley up to 70 degrees North latitude, but as the Medieval Warm period ended, by 1300 CE, the active settlements were limited to the southern coast.



For settlements around Tunuliarfik- and Aniaaq-fjords:



"Excavations show that there were considerable birch woods with birch trees up to 4 to 6 meters high in the area around the inner parts of the Tunuliarfik- and Aniaaq-fjords, the central area of the Eastern settlement, and the hills were grown with grass and willow brushes." - http://en.wikipedia.org/wiki/History_of_Greenland

Answer 4

As temperatures continue to rise there are several



Sea level is one, from the end of the last glaciation it did rise markedly but then slowed ~4000 years ago and basically stopped ~2000.

http://commons.wikimedia.org/wiki/File:Holocene_Sea_Level.png

Over the last century it has been rising at ~1.7mm per year and that rate increased to 3.26mm in the early 1990s

http://climate.nasa.gov/keyIndicators/index.cfm#SeaLevel

to date sea level rise is a mix of thermal expansion of water itself and a contribution from melting ice as temperatures continue to rise the contribution from ice melt will increase.



Another in the retreat of ice in glaciers and ice field around the world whether it's mountain glaciers, ice field in Alaska, Greenland or Antarctica.

http://www.nrmsc.usgs.gov/repeatphoto/overview.htm

http://www.usgs.gov/global_change/glaciers/repeat_photography.asp



Deniers also make claims about Greenland and the Vikings during the Medieval Warm Period, when in fact the Viking only ever inhabited coastal regions in the south and south west the usual claim is they (the Vikings) were growing food there are several problems with this

1) The best archaeological evidence we have says the Vikings lived on meat and local native plant life, used to conditions and they grew grass to feed their animals (grass is very hardy and will grow almost anywhere)

2) Today in Greenland they are able to grow vegetables

http://www.spiegel.de/international/spiegel/0,1518,434356,00.html

Answer 5

the physical changes of climate change are-

excess warm weather.

less of drinking water

Answer 6

type it in Google you will get an accurate answer

but here are a few



+pollution

+ice caps melting

+sea levels rising

Answer 7

ha ha noting depends on stifness

Answer 8

http://www.metoffice.gov.uk/climatechange/science/explained/explained1.html



http://en.wikipedia.org/wiki/Physical_impacts_of_climate_change



http://en.wikipedia.org/wiki/Acidification



http://www.unep-wcmc.org/climate/oceans/phys.aspx



http://www.nature.com/nature/journal/v453/n7193/full/nature06937.html