Monday, November 23, 2009

Climate Change Science: Resources part 2

In part 1 of this series I listed some websites that provide useful information on climate change. In this post (part two) I will provide links to specific figures and graphs on areas of climate science.

Please note that many important climate science figures come from the IPCC reports and scientific papers which are often not available to view online (although the IPCC reports are free to download) so some figures necessarily come from websites which have copies.

One website that collates scientific images in one place is: Global Warming Art. Other links are provides in the drop-down boxes below.

+/- Temperature and temperature trends - click to expand

Graph of the surface temperature record (land and ocean) from NASA GISS
-Technical note: Green bars are uncertainty estimates, base period ie: temperature anomaly of 0 is 1950-1980

Temperature trend calculator (Hot-topic website)
- situated within an article (so scroll down to find) this interactive gadget displays the temperature trend of the instrumental record.

Recent temperature trends (RealClimate website)
- heard skeptics claiming warming has stopped, what does the science actually show? Graphic show upwards temperature trend over the last ten years.

Statisticians reject global cooling - another rebuttal to skeptic disinformation

NCDC - State of the Climate
-National Oceanic and Atmospheric Administration (NOAA) National Climatic Data Center (NCDC) gives all the climate information you could want to poke a stick at (surface temp, atmospheric temp, rainfall, ice extent etc etc).

+/- Carbon dioxide levels, comparison with temperatures and humans vs volcanoes

Carbon dioxide levels over the past 400 000 years (NASA)
-shows the steep rise in C02 since industrialization

Comparison of CO2 emissions from volcanoes vs. human activities (US geological survey)
-another skeptic favourite, to bad "Human activities release more than 130 times the amount of CO2 emitted by volcanoes". To find, click on the "effects" tab and then scroll down.

Correlation of C02 and temperature (Skeptical science)
-Show graphical relationship between C02 and temperature over 450 000 years. Plus explains (rather technically) why C02 changes lag temperature changes during iceage- interglacial transitions.

+/- Sea level rise and ice melt (Glaciers, Greenland, Antarctica and the Arctic)

Recent sea level rise (CSIRO)
Last few hundred years (CSIRO)
- note that the average 20th century rise was 1.7 mm/yr. While in the last two decades it has been 3.3 mm/yr. It would appear sea level rise is increaseing in speed.

Accelerating ice loss from Antarctica and Greenland (Skeptical science)
- Review results of a recent scientific paper which shows rapid increases in ice loss from Antartica and Greenland

Melting of glaciers (Sketpical science)
-Combines results from several papers to show how almost all studied glaciers are melting

Melting of arctic ice cap
-shows how both winter ice extend and especially summer ice extent have decreased. Scroll down to figure S2.

Solar activity vs temperature rise
No correlation between solar activity and global warming (Skeptical science)
-summaries scientific papers on solar activity.

Attribution of climate change - two slightly different ways of looking at it
Effect on radiative forcing (IPCC FAQs)
Effect on temperature (Global warming art)

The Earths energy balance and how we know global warming is occurring
(Skeptical science)
-summaries several lines of evidence to show how we know the earth is warming due to greenhouse gasses.

Comparisons of emissions from different countries (Washington Post)
-shows levels of emission per country and per capita up to 2006. Australia is the 15th biggest polluter worldwide per total emissions and the 2nd biggest per person.

C02 abatement cost curve
. Created by McKinsey and Co. Shows the "cost" and effect of various emission reduction strategies by 2030. Note that many ares especially in efficiency save money.

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