Let’s explore together.

We’re always working on new ways to help you make smarter and
more efficient travel choices. This is where you can try them first.
Your feedback is a huge part of our process. Plus, beta testing is a lot of fun.

Clear skies start with a clearer choice.

Emerald is a secure browser app that reveals the actual fuel consumption and CO2 emissions of every flight worldwide — and prioritizes them based on your ideal schedule and price to help you quickly make the most eco efficient choice.

Because Emerald seamlessly integrates with your favorite travel sites, everything you need to compare and book is in one convenient place. Just search as you normally do, and you’ll see Emerald’s eco ratings next to each flight option. It really is that simple.

How much of a difference can Emerald make? Let’s take LA to NYC as an example. A typical Expedia search will offer plenty of choices. Yet on a given result page, fuel use between flights can vary as much as 50%. Emerald not only highlights the most efficient flights that meet your criteria, but can often find one at the same or lower fare — so you can make a smarter choice without giving up a thing.

If we all take more efficient flights when we can, the results can be huge. Together, we can seriously reduce carbon emissions, save fuel, and use our spending power to reward airlines for being eco friendly. Right now, Emerald works with all major desktop browsers (sorry, no tablets or mobile devices just yet). Why not take it on a test flight now? Installation only takes a few seconds.

Apple Safari
Extension

Install

Emerald is also available for these browsers:

  • Google Chrome
  • Microsoft Internet Explorer
  • Mozilla Firefox
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Google Chrome
Extension

Install

Also available from

Available in the Chrome Web Store

Emerald is also available for these browsers:

  • Apple Safari
  • Microsoft Internet Explorer
  • Mozilla Firefox
close

Microsoft
Internet Explorer
Add-on

Install

Emerald is also available for these browsers:

  • Apple Safari
  • Google Chrome
  • Mozilla Firefox
close

Mozilla Firefox
Add-on

Install

Emerald is also available for these browsers:

  • Apple Safari
  • Google Chrome
  • Microsoft Internet Explorer
close

Emerald is already installed in
your browser. Try it now.

close

Emerald is already installed in
your browser. Try it now.

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Headline for Project A.

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Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor. Aenean eu leo quam. Pellentesque ornare sem lacinia quam venenatis vestibulum. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit. Nulla vitae elit libero, a pharetra augue.

Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Morbi leo risus, porta ac consectetur ac, vestibulum at eros. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.

Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Donec ullamcorper nulla non metus auctor fringilla. Nullam quis risus eget urna mollis ornare vel eu leo. Maecenas faucibus mollis interdum. Cras mattis consectetur purus sit amet fermentum. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit.

Headline for Project B.

Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Maecenas sed diam eget risus varius blandit sit amet non magna. Morbi leo risus, porta ac consectetur ac, vestibulum at eros. Maecenas faucibus mollis interdum. Nullam id dolor id nibh ultricies vehicula ut id elit. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Maecenas sed diam eget risus varius blandit sit amet non magna.

Vivamus sagittis lacus vel augue laoreet rutrum faucibus dolor auctor. Aenean eu leo quam. Pellentesque ornare sem lacinia quam venenatis vestibulum. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit. Nulla vitae elit libero, a pharetra augue.

Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Morbi leo risus, porta ac consectetur ac, vestibulum at eros. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.

Praesent commodo cursus magna, vel scelerisque nisl consectetur et. Donec ullamcorper nulla non metus auctor fringilla. Nullam quis risus eget urna mollis ornare vel eu leo. Maecenas faucibus mollis interdum. Cras mattis consectetur purus sit amet fermentum. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit.