Comments on: Reduced-guilt flying now readily available for online purchase

By: Planning a Green Vacation

Planning a Green Vacation — Mon, 10 Dec 2007 15:56:33 +0000

[...] harm you do by supporting environmental efforts. Expedia and Travelocity even offer the option to buy carbon offsets at the same time that you book your trip. These C02 offsets are used to fund green initiatives that reduce the amount of carbon in the [...]

By: Burn, baby, burn: Silverjet makes carbon offsets mandatory » Upgrade: Travel Better

Fri, 01 Jun 2007 13:11:29 +0000

[...] and Travelocity recently partnered with third-party organizations like TerraPass to give customers the option of buying so-called [...]

By: Adam Stein

Adam Stein — Wed, 30 Aug 2006 15:20:00 +0000

Hi folks. This is Adam from TerraPass, following up on this thread.

The World Resources Institute (WRI) publishes what is regarded as the standard for accounting for greenhouse gas emissions. As you’ve noted, this is tricky business, but their numbers are nevertheless regarded as the best thing going.

To see an example of the spreadsheets they use to calculate emissions from different sources, look here:

http://climate.wri.org/topic_data_trends.cfm

They’re also responsible http://www.ghgprotocol.org, an international standards initiative.

Hope this helps,

Adam

By: Anonymous

Anonymous — Tue, 29 Aug 2006 21:06:00 +0000

Tom, what are WRI protocols? Thanks.

By: tomatterrapass

tomatterrapass — Tue, 29 Aug 2006 20:25:00 +0000

Technically you are accurate, although the WRI protocols we use don’t differentiate between classes.

Three very simple things you can do to reduce your emissions impact
1) Fly coach
2) Fly direct (shorter flights pollute more on a per mile basis)
3) Pack lightly

Cheers,

Tom Arnold
CEO
TerraPass

By: Mark Ashley

Mark Ashley — Tue, 29 Aug 2006 20:22:00 +0000

I, too, would be curious to know what WRI protocols are…

I assume you mean the method of calculating the environmental impact per traveler.