Indicators of a warming world

Humans are warming the planet[1] by increasing the greenhouse gases in the atmosphere. Scientists have many lines of evidence that consistently show that the world is getting warmer. These indicators of global warming (see figure 1 below) include:[1]

Visit the above pages for information about each.

Figure 1. Ten indicators of a warming world.[2]


  1. 1.0 1.1 NASA. (Accessed November 7, 2015). Climate change: How do we know? [Online], Available:
  2. Wikimedia Commons [Online], Available: