21 January 2011

19 January 2011

Cool NOAA climate change widget

Have a look at this cool widget on the website of the US National Oceanic and Atmospheric Administration (NOAA).

It is a series of dashboard-style panels of time series data. The data are: global average temperature, atmospheric carbon dioxide, solar radiation reaching Earth (Sun's energy), seal level and the extent of Arctic sea ice. AT the top of the panel is a slider control allowing you to choose any time period between 1880 and 2011.

13 January 2011

Queensland Floods

Gareth looks at the Queensland floods from a climate change point of view. The Australian Meteorological and Oceanographic Society say it is caused by the strongest La Nina event ever.

This BBC Weather webpage gives a graphical explanation of how the flows of the cold and warm currents change in a La Nina phase.
BBC Meteorologist Nina Ridge explains La NiƱa.

Good simple explanation. (Unlike the graphic on TV One News tonight where the moist air flow seemed to be twisting down onto western NZ, and completely missing Queensland!)

But is her name really Nina Ridge? It does appear too much of a coincidence.

11 January 2011

Greenhouse gases global warming

Here is James Hansen giving a four minute explanation of global warming caused by our greenhouse gas emissions and the need to phase out coal within decades.