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A Changing Climate
Transcript of A Changing Climate
An info-graphic presentation created by the North Carolina Students for Climate Action (NCSCA)
Climate Change: What are the Facts?
Basics of the Greenhouse Effect
What are Greenhouse Gases and where do they come from?
The three substances commonly referred to as Fossil Fuels are:
Scientists on the Intergovernmental Panel on Climate Change (IPCC) have agreed with 95% confidence on Human Causation of Climate Change
What are the Effects of Global Warming?
Yes it is getting warmer -- on a global level
Sea Level Rise
Action on Climate Change:
It needs to be NOW
Paths to a Stable Future
Before the United States can play its part in effectively implementing any of these solutions...
Our government must recognize that climate change is an issue, and begin an open dialogue about future actions to be taken!
“If humanity wishes to preserve a planet similar to that on which civilization developed and to which life on Earth is adapted, paleoclimate evidence and ongoing climate change suggest that CO2 will need to be reduced from [current levels] to at most 350 ppm.”
Dr. James Hansen of the Goddard Institute for Space Studies
GRID Arendal: http://www.grida.no/publications/vg/climate/page/3060.aspx
http://www.atmosedu.com/Geol390/feedbacks.htm#10. Sea-level deglaciation feedback.
Rows represent 3 different emission scenarios
Columns represent 3 different time periods
A graphic from the EPA showing projected warming from most optimistic (left) to most drastic (right)
A graphic from the IPCC showing projected amounts of sea level rise
Global Emissions from 1997-2007
The (simplified) method by which Greenhouse Gases cause global warming
Global Greenhouse Gas Emissions in 2007
Climate Change has widespread effects on cropland and animal habitats
Global carbon dioxide emissions since 1900
(measured in teragrams)
There are many possible technological solutions that could slow global warming, or alleviate the effects of climate change. These fall under the category of geoengineering.
The full effects of our changing climate cannot be felt currently as a result of numerous negative feedback loops that will continue to amplify warming cycles even if CO2 emissions are greatly decreased.
A simplified pictorial representation of the negative atmospheric vapor feedback cycle
Development of renewable energy sources could greatly decrease or even eliminate our reliance on fossil fuels
Many climate scientists use "Wedge Plans" similar to the one shown below to illustrate suggested methods for the reduction of greenhouse gas emissions
Legislation combating climate change could take many forms, including:
A flat tax on carbon emissions
A cap and trade scheme to regulate emissions
Energy efficiency regulations
Other environmental protection legislation
Atmospheric CO2 Levels
Across the world, in every kind of environment and region known to man, increasingly dangerous weather patterns and devastating storms are abruptly putting an end to the long-running debate over whether or not climate change is real. Not only is it real, it's here, and its effects are giving rise to a frighteningly new global phenomenon: the man-made natural disaster...
...And someday, our children, and our children’s children, will look at us in the eye and they'll ask us, did we do all that we could when we had the chance to deal with this problem and leave them a cleaner, safer, more stable world? And I want to be able to say, yes, we did.
- President Barack Obama
What we (at NCSCA) are up to now: