The Evidence of Global Climate Change


There is a lot of evidence supporting the hypothesis that Global Climate Change is occurring and that human activity is a major factor.  The NASA Global Climate Change website produced by the Earth Science Communications Team at Jet Propulsion Laboratory is a great resource for data. Below are some of their data and visualizations. Visit their page for more.

Global surface temperatures have increased


C02 in the atmosphere has increased since the Industrial Revolution

NASA graph of CO2.jpeg

This graph from the NASA Global Climate Change webpage, shows the increase in atmospheric CO2 since the Industrial Revolution. (Credit: Vostok ice core data/J.R. Petit et al.; NOAA Mauna Loa CO2 record.)


Sea Level changeground.pngSea Levels have risen

These two charts from the NASA Global Climate Change webpage show the rise in sea levels measured via satellite from 1993 to present and from tide gauges from 1870 to 2000.



Continue on to the Impacts of Global Climate Change