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Used in K-12 education by over 9,000 users in over 140 countries and all 50 U.S. States.








Our goal is to build an internet site that acts in supplement to current in-class environmental education for K-12 students. Also, we aim for accessibility of our content by the general public. Student learning and their experience will be tracked through surveys and quizzes. Our site is appropriate for use in public locations, such as school classrooms, libraries, at home, or at the workplace. Students and teachers may find the site especially helpful while studying and teaching global climate change.

We offer video tutorials on various climate change related subjects to support content-based education in the classroom.

What Changes Climate?

Learn about the carbon cycle, past climates, and how the greenhouse effect and natural factors are contributing to climate change.

Is it Real?

Learn about the evidence of change to the earth’s temperatures, our oceans, snow and ice, rain and drought, and our ecosystems. Find out how the human element (anthropogenic) plays a role in CO2 contributions, other greenhouse effects, and whether or not we are the cause of climate change.

How do we know?

Learn what the experts from the Intergovernmental Panel on Climate Change (IPCC) and from elsewhere have determined. Learn about paleoclimate and observational data on the subject and how climate and weather models are used to forecast climate change.

Why should we care?

Learn about the effect a few degrees of change can cause, including: hotter summers & warmer winters, droughts and floods, sea-level rising, and extreme weather. Learn about outstanding effects to ocean ecosystems, economics, security, health, and regional impacts.

Are scientists sure?

Learn about the confidence and probabilities behind the assessments scientists are making concerning signs, effects, causes, future projections, and future impacts of climate change. See information behind the two alternative positions: 1) It’s Not Happening or 2) It’s Worse Than We Thought. Also, is there consensus?

What Next?

Learn about what we should be doing next to help with the problem, particularly strategies for adaptation and mitigation and what you can do. See what future work will be done on assessments and research.

Test Your Knowledge

Test your knowledge about what you’ve learned in the previous topics and learn something new in the process!

Ask a Scientist

Have questions about what you’ve learned or interested in seeing what others have to ask?  Ask scientists working in the fields of environmental and climate sciences about the content you’ve learned here and elsewhere.