Graph of the Day: Abundance of Steller Sea Lions at Año Nuevo Island, 1990-2004

The decline of the central California breeding population cannot be attributed solely to any single threat listed below, but instead is the result of a combination of multiple threats. In some cases, exposure to one threat may make the animals more susceptible to the others (e.g., high level of contaminants may make an animal more […]

NASA's TRMM satellite maps Cyclone Paul's extreme rainfall totals in Australia

By Rob Gutro, NASA’s Goddard Space Flight Center The Tropical Rainfall Measuring Mission or TRMM satellite has been called a “flying rain gauge in space” because it measures rainfall from its orbit around the earth. This week, ex-tropical storm Paul gave TRMM a workout measuring heavy rainfall the storm left behind in areas of northern […]

Graph of the Day: Global Average Temperature, 1850-2009

HadCRUT3 Diagnostics: global average (NH+SH)/2 Calculating the global mean as the mean of the northern and southern hemisphere averages helps prevent the value becoming dominated by the Northern hemisphere, where there are more observations. Technorati Tags: global warming,climate change

Graph of the Day: Global Deforestation Rate, 2005-2010

Previous figures underestimated global deforestation rate for the 1990s. FRA 2010, like FRA 2005, did not directly compile data on deforestation rates, because few countries have this information. In FRA 2005 the global deforestation rate was estimated from net changes in forest area. Additional information on afforestation and on natural expansion of forest for the […]

Graph of the Day: Record Hot and Cold Days in Australia, 1960-2009

The number of days with record hot temperatures has increased each decade over the past 50 years. There have been fewer record cold days each decade. 2000 to 2009 was Australia’s warmest decade on record. State of the Climate [pdf] Technorati Tags: Australia,global warming,climate change,drought,flood,agriculture,sea level,freshwater depletion,heat wave

Graph of the Day: Size of Hypoxic Zone in the Gulf of Mexico, 1977-2007

The relationship between the size of the hypoxic zone in July (km2) and the May nitrate+nitrite N loading (kg N) to the Gulf of Mexico each year. A linear regression of the data is shown. The individual data points are in four chronologically-sequenced groups separated from each other when the data fall below the slope, […]

The Carbon Quilt: Making sense of the world’s carbon footprint

The Carbon Quilt is a universal tool to make greenhouse gases visible. London’s daily carbon dioxide emissions. 139 thousand tonnes of carbon dioxide would fill a sphere 521 metres across. To most Londoners, ‘139 thousand tonnes of carbon dioxide’ is not a very meaningful quantity. Illustrating it in the context of London landmarks allows viewers […]

Graph of the Day: The Great Pacific Garbage Patch

By now, most of us are aware that there is a large patch of floating plastic in the middle of the Pacific Ocean. What you may not know is that it’s not made up of plastic bags and empty bottles. It’s made up of billions of tiny pieces of plastic, and it’s basically invisible unless […]

Graph of the Day: Trend in Australia Mean Temperature, 1960-2009

All of Australia has experienced warming over the past 50 years. Some areas have experienced warming since 1960 of up to 0.4ºC per decade resulting in total warming over the five decades of 1.5 to 2ºC Highly variable rainfall across the country, with substantial increases in rainfall in northern and central parts of Australia, as […]

Ice loss from Greenland ice sheet spreading to northwest coast

AGU Release No. 10–0723 March 2010For Immediate Release WASHINGTON—Ice loss from the Greenland ice sheet, which has been increasing during the past decade over its southern region, is now moving up its northwest coast, according to a new international study. The research indicates the ice-loss acceleration began moving up the northwest coast of Greenland staring […]

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