August 28

How has climate change affected the world?

NASA – Climate Time Machine

This is a fascinating gadget that illustrates the changes that have occurred to the sea levels, temperature, carbon emissions and sea ice since the 1880’s. If you’ve only got a minute choose Average Global Temperature to see how the earth’s temperature has changed from 1884 to the present day.

Launch Climate Time Machine Interactive

The NASA – Climate Resources page has many more gadgets you can use to find out about our world and our climate.

June 11

Noctilucent clouds

NASA TV presents a video about noctilucent clouds. What are they, how are they formed? This YouTube clip provides all the answers to these and other questions. Noctilucent clouds have appeared in the northern hemisphere earlier this year than ever before, giving scientists a longer time to study them. Global warming could be the cause of the early arrival.

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