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Climate Change Primer

This climate change primer is intended to give you enough of the global warming science and climate change research that you'll feel comfortable teaching it to or discussing it with your students.
Solutions and actions are included, too.

— Updated 13 October 2009 —

Used with permission


If there's no action before 2012 [when the Kyoto Protocol runs out], that's too late. What we do in the next two to three years
will determine our future. This is the defining moment.
—Rajendra Pachauri, Chair of the UN Intergovernmental Panel
on Climate Change, 2007


Learn the Science of Climate Change

Met Ed - The Science of Global Climate Change and Human Influences

The Science of Global Climate Change and Human Influences

The most important part of any climate change primer is the science. Click on the thought-provoking illustration above to link to a wonderful webcast audiovisual resource by Dr. Kevin Trenberth of Met Ed
(where you can learn all things meteorological).
You will have to register, but it's well worth it (and free).

Understand Carbon Feedbacks

Wake Up, Freak Out — Then Get a Grip
(might take a moment to download)


Wake Up, Freak Out - then Get a Grip from Leo Murray on Vimeo.

This 11-minute movie is worth every second because it explains carbon feedbacks (and the scariest feedback of all, the destabilization of methane hydrates — the methane timebomb) so clearly. Understanding carbon feedbacks is a crucial part of any climate change primer.

(If the movie gets choppy, simply hover your cursor over the "screen" until the controls come up, then pause it for a few moments.)

Numbers Count

A climate change primer would be incomplete without some math. Greenhouse gas (GHG) concentrations are everything when it comes to climate change, so understanding the numbers is extremely important.
  • the baseline for carbon dioxide or CO2, the most significant GHG in the atmosphere = 280 parts per million (ppm) at the start of the industrial age

  • the current level of CO2 in the atmosphere (visit
    CO2 Now for monthly updates) = 384.78 ppm (as of September 2009)

  • how quickly it's rising = almost 2 ppm per year (which might not sound like much, but each tiny CO2 molecule acts as a little radiator and can remain in the atmosphere for up to hundreds of thousands of years)

  • the "safe level" of CO2 in the atmosphere (because dangerous carbon feedbacks have already begun) = 350 ppm or less (visit 350.org to learn more); indeed, we should be trying to get back down to 280 ppm!

  • the only safe target for avoiding climate catastrophe is ZERO: zero burning of fossil fuels and virtually zero carbon emissions, as rapidly as humanly possible, and certainly before 2050 (see Weaver, A. J. et al [2007], Long term climate implications of 2050 emission reduction targets, or Rajendra K. Pachauri, chair of the Intergovernmental Panel on Climate Change, who was asked for the April 2008 Indian edition of Reader's Digest whether it's possible to reverse global warming. Here's his response: "Theoretically, yes. You will really have to bring down your emissions to below zero and find ways by which you can absorb existing carbon dioxide. Technologically, that's entirely possible.")

So, do the math with your (older) students:

Current level - safe level = how much CO2
needs to be removed from the atmosphere

Here's the problem to pose to them:

  • Current levels of GHGs are too high. And we keep increasing our emissions into the atmosphere (instead of dropping them). And we're accelerating the rate at which we're increasing these emissions. Carbon sinks are failing, so emissions are not being "absorbed" into the Earth's systems (through the delicately tuned carbon cycle) as efficiently as they used to be. And carbon feedbacks have begun in the Arctic (for example, higher temperatures thaw permafrost, releasing carbon dioxide and methane, which as greenhouse gases lead to further global heating, which leads to more thawing, and so on).

  • What needs to happen to regain the carbon and climate equilibrium that allowed the flourishing of agriculture and therefore human civilizations and cultures over the last five to ten thousand years (since the end of the last ice age)?


Know the Carbon Cycle!

carbon cycle

Click the image to see a larger version.
The short and long carbon cycles are a vital part of any
climate change primer.

But What Can I Do?

It's always election time somewhere in the world ... please do all you can to make climate change and renewable energy an important election issue — THE MOST IMPORTANT ELECTION ISSUE OF ALL TIME — for all candidates and governments, at every level.

But you don't have to wait for election time. You can write, fax, email, phone or visit your elected representatives right now. When asked what would make a difference in Canada, one politician stated, "One hundred thousand people on Parliament Hill." The United States had its Million Man March in Washington, DC. What about a Million Grandchildren March?

You can start spreading a compelling vision of a sustainable future. Imagine a world based on a renewable energy economy. It would be a world that is safe, clean and healthy (no more pollution), peaceful (no more resource wars) and equitable (no one owns the sun, wind, tides or Earth's core heat).

Here's what a wonderful friend of ours, Ricci O'Reilly, did when he learned about global climate change. He was moved to write a song. He made a video. He posted it on YouTube. He's getting responses from around the world! Imagine your students doing something like that. (And don't think you have to know how to do it first; they'll teach you!)

It's the Right Time


Understand the Urgency of the Climate Change Emergency

According to the Worldwatch Institute State of the World 2009 report, Into a Warming World, "global emissions of carbon dioxide must reach a peak in less than 10 years and then begin a rapid decline to nearly zero by 2050 to avoid catastrophic disruption to the world's climate."

Christopher Flavin, president of well-respected US-based environmental think tank, explained that "2009 is a pivotal year to deal with climate change. Humanity will face grave danger if we don't move forward now."

Emissions of carbon dioxide will actually need to "go negative" — with more being absorbed than emitted — if we want to avoid unacceptably dangerous temperature increases.

Civil society is being called on to "provide unrelenting leadership" if we want to achieve the necessary reductions in greenhouse gases.

For a deeper look at the scientific research that is highlighting the global climate change emergency, visit Climate Change Emergency Medical Response — a website for health care professionals that will also help educators understand the urgency.

climate change emergency

Please share this Climate Change Primer with other educators.
Just copy and paste this link into an email message to your colleagues, administrators, trustees and professional organizations:

http://www.greenhearted.org/climate-change-primer.html

Here's a link to the educational rationale
for making global warming and renewable energy education
the overarching focus of curriculum:

http://www.greenhearted.org/global-warming.html

Thank you.



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