Tag Archive | greenhouse gas

How to Calculate Greenhouse Gas Emissions



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Learn the steps involved in calculating your company’s greenhouse gas emissions from bill and utility meter data. Covers use of emission factors and global warming potentials.

DISCLAIMER: This presentation is provided for informational purposes only. All definitions and methodologies are presented in a general context only. This presentation is not a substitute for formal education and training.

Mike Berners Lee – The Carbon Footprint of Everything



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Environmental expert Mike Berners-Lee provides the facts we need to make more carbon-conscious purchases and lifestyle decisions.

What’s Your Carbon Footprint? – Earth 101



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(Visit: All of us contribute to the greenhouse gas emissions that are causing climate change. But there are ways to reduce our carbon emissions. How we travel, what we eat, what we consume and what we discard are just some of the factors that contribute to our carbon footprint. Louis S. Santiago, an assistant professor of physiological ecology at the University of California, Riverside, explains how we can measure our impact on our climate. He argues that we can all do something to reduce our carbon footprint. Series: “Earth 101: What You Need to Know About Life on our Planet” [9/2012] [Science] [Show ID: 24208]

New York City’s greenhouse gas emissions as one-ton spheres of carbon dioxide gas



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In 2010 New York City added 54 million metric tons of carbon dioxide (equivalent) to the atmosphere, but that number means little to most people because few of us have a sense of scale for atmospheric pollution.

Carbon Visuals ( and Environmental Defense Fund ( wanted to make those emissions feel a bit more real – the total emissions and the rate of emission. Designed to engage the ‘person on the street’, this version is exploratory and still work in progress. Mayor Bloomberg’s office has not been involved in the creation or dissemination of this video.

NYC carbon footprint:

54,349,650 tons a year = 148,903 tons a day = 6,204 tons an hour = 1.72 tons a second

At standard pressure and 59 °F a metric ton of carbon dioxide gas would fill a sphere 33 feet across (density of CO₂ = 1.87 kg/m³: If this is how New York’s emissions actually emerged we would see one of these spheres emerge every 0.58 seconds.

Emissions in 2010 were 12% less than 2005 emissions. The City of New York is on track to reduce emissions by 30% by 2017 – an ambitious target.

For a set of stills from this movie, see:

For more information see:

Co-director: Chris Rabét (

What if Carbon Emissions Stopped Tomorrow?



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Imagine that aliens landed and gifted us a clean, limitless energy source. And instead of killing each other over this technology, we decided to immediately transform the world into a carbon-free society. This wonderous source would power our homes, industries, cars and planes, and humanity’s annual rate of carbon pollution would almost instantly fall to zero. So if we kicked our carbon addiction tomorrow, what would that mean for global warming?

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———–
Host/Editor-In-Chief: Joe Hanson
Writer: Eli Kintisch
Creative Director: David Schulte
Editors/Animators: Karl Boettcher
Producers: Stephanie Noone & Amanda Fox
Story Editor: Alex Reich
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Produced by PBS Digital Studios
Theme Music: Eric Friend/Optical Audio
Music: APM
Stock images from

Thanks to the funders of Peril & Promise for supporting PBS Digital Studios. Peril & Promise is a national public media initiative from WNET telling human stories of climate change and its solutions. Learn more at