Global Warming and Global Temperature

Projections of Global Temperature Change
Since 1979, scientists have generally agreed that a doubling of atmospheric carbon dioxide increases the earth's average surface temperature by 3 to 8ºF (1.5 to 4.5ºC). More recent studies have suggested that the warming is likely to occur more rapidly over land than the open seas. Moreover, the warming in temperatures tends to lag behind the increase in greenhouse gases. At first, the cooler oceans will tend to absorb much of the additional heat and thereby decrease the warming of the atmosphere. Only when the ocean comes into equilibrium with the higher level of CO2 will the full warming occur. The Intergovernmental Panel on Climate Change estimates that the concentration of CO2 will double from pre-industrial levels by the mid- to late 21st century. Currently, the panel projects a global average warming of 1.0 to 4.5ºF (0.6 to 2.5ºC) in the next fifty years and 2.5 to 10.4ºF (1.4 to 5.8ºC) by the year 2100, compared with the global average temperature in 1990. The wide range in projected temperatures is due to varying assumptions about future trends in greenhouse gas emissions and sulfate aerosols. The following projection of global temperature rise comes from the IPCC Third Assessment Report (2001)

More on Global Warming & Environmental Science

Information provided by the U. S. Environmental Protection Agency.

If you need to teach it, we have it covered.

Start your free trial to gain instant access to thousands of expertly curated worksheets, activities, and lessons created by educational publishers and teachers.

Start Your Free Trial

Follow us on:

Follow TeacherVision on Facebook
Follow TeacherVision on Google Plus


December Calendar of Events
December is full of events that you can incorporate into your standard curriculum! Our Educators' Calendar outlines activities for each event. Happy holidays!

Bullying Prevention Resources
Bullying can cause both physical and emotional harm. Put a stop to classroom bullying, with our bullying prevention resources. Learn how to recognize several forms of bullying and teasing, and discover effective techniques for dealing with and preventing bullying in school.

Conflict Resolution
Teach your students to how resolve conflict amongst themselves without resorting to name-calling, fights, and tattling.

Immigration Resources
Studying immigration brings to light the many interesting and diverse cultures in the world.