The document discusses declining interest in global warming issues based on web measures showing people discuss and search for information on the topic less. It notes that climate change is a serious problem because unlike financial systems, there is no way to bail out the planet's life support systems if they are damaged. Several facts about Earth Hour 2010 are provided, including that over 100 countries participated and thousands of landmarks turned off lights. However, some criticisms of Earth Hour are mentioned, such as a man being injured in Finland when street lights were turned off. [/SUMMARY]