Climate Change: Lines of Evidence

Although some people and organisations in our political and media systems attempt to claim that there is significant disagreement amongst scientists about the reality and causes of climate change, this claim is simply not true. The reason why all of our peak science organisations support the science is that there are multiple lines of evidence supporting the consensus science.

Here is a link to a post on the same topic as this one that I produced in 2010.

The videos in this post were produced by one of the world's major science organisations - the American Academy of Science. A 36 page booklet that accompanies this video set can be downloaded here.

The first Video describes the project and makes the major point of the series:

The overwhelming majority of climate scientists agree that human activities, especially the burning of fossil fuels (coal, oil, and gas), are responsible for most of the climate change currently being observed.


The second video demonstrates the evidence that the planet is warming, and describes the methods that scientists use to gather this evidence.


The third video describes how the "Greenhouse Effect" operates.


The fourth video describes evidence that the level of carbon dioxide is increasing and that the increase is from human activities.


The fifth video discusses the amount of warming to be expected and covers the important concepts of "forcing" and "feedback"


The sixth video provides evidence that the recent warming is not caused by changes in the output of the sun


Video seven discusses natural variations in climate and the attribution of the recent Climate Change to human factors