2009 tied for second hottest year on record
In Southern Hemisphere, 2009 hottest year on record
Earth accumulating heat since 1970s
Ocean storing more heat each year
Mean surface temperature change between 1950s and 20s
2000s saw twice as many U.S. record highs as record lows
Warming in Greenland and Arctic amplified as models predict
West Antarctica warming
A cold winter? Depended on where you live. (NASA, °C)
January 2010 hottest year in satellite record
2010 starting off as hottest year in satellite record.
Temperatures at 14,000' from satellites.
Top line ending in a small box is 2010. Heavy yellow=20 year average. Magenta=record highs. Green=2009.
Make your own chart here. For larger version click here.
2009 second hottest year on record in Australia. 2000-2009 hottest decade.
Jan. 13, 2010: Melbourne has hottest overnight temperature in 108 years. 
Another view: Australian temperature anomalies 1960-2009
Every part of Australia has warmed, some by 1.5 to 2 °C over five decades
"This suggests an apparent shift in Australia’s climate from one characterised by natural variability to one increasingly characterised by a trend to warmer temperatures."
February 2009: Australia suffers worst drought in history; massive wildfires
Western U.S. drought continues, December 29, 2009
Colorado River inflow to Lake Powell lowest on record (2009=95%)
Western snow melting earlier in spring
Western wildfire frequency and spring-summer temperatures since 1970
Greenland losing ice
(Science Magazine; subs. required)
Antarctica losing ice
Mountain glaciers shrinking worldwide
Grinnell Glacier, Glacier Nat’l Park, 1938
Grinnell Glacier, Glacier Nat’l Park, 2009
Retreat of Gangotri Glacier, one of the largest in the Himalayas, 1780-2001
Arctic Sea Ice shrinking: Arctic Ocean forecast ice-free by 2030, or sooner
Observed vs. modeled Arctic Sea Ice decline
The IPCC was too conservative
Arctic air temperature “hockey stick”
Permafrost melting
Arctic shoreline retreating
Arctic river discharge increasing as ice melts
U.S. Plant zones shifting north
Changes in timing of spring events in days per decade for individual species grouped by taxonomy or functional type. Each bar represents a separate, independent species. Negative values indicate advancement (earlier changes through time) while positive values indicate delay (later changes through time). Far more spring events are coming earlier than are coming later. Parmesan (2007)
Increase in number of days between last and first frosts, US Northeast, 1901-2001
(Red=more days without frost)
California lakes warming
Drought in Middle East
Sea level rising since 1870
All satellite data and 3-month average
Oceans growing more acidic (more negative pH) between 1700s and 1900s
as atmospheric CO2 rise and more dissolves in the oceans