Frequently Asked Questions - Technical questions and problems

Are you seeing the message "Javascript is required to view this map"?
Most likely your browser needs a "hard refresh" of the page. This is different on Windows and Macs.

Windows: press the 'Ctrl' and 'F5' keys at the same time.
Mac: press the 'Command' and 'Shift' and 'r' keys at the same time.

The page should refresh and the map should load. If this doesn't work, perhaps you have javascript disabled on your browser. Click here to check. If you have javascript turned off, turn it on! This is different for every browser, so search the internet for instructions on how to turn it on. Typically it is in the 'settings' or 'options' menu.

If all else fails, you can contact us - make sure you tell us what browser you're using (e.g. Firefox 3, IE8, Chrome, etc), and what version, as well as what operating system (e.g. Windows 2000, Windows Vista, Mac OSX, etc).

This website is not designed for older versions of Internet Explorer.

Any new Open Green Map needs at least one site added before you can see the map. Even if you have added lines or areas, you won't see anything until you add a site. You can quickly create a test site as a temporary way to view your map.

Firefox, Chrome, Safari, Opera and Internet Explorer 8 are fine, but the Open Green Map is not designed for older versions of Internet Explorer. OGM requires javascript for the maps to work.

Your comments, images, and impacts may need a "hard refresh" of the browser to be visible on your computer. On Firefox: Windows press the 'Ctrl' and 'F5' keys at the same time. And on Mac press the 'Command' and 'Shift' and 'r' keys at the same time.

If you clicked Suggest a Site or Join Team, an email was sent to the Mapmaker (Team Leader). Please wait a couple of days for them to respond.

Click on My Account in the first box under the MyOGM link.

Your user page will appear, displaying all your Green Sites submitted to the Open Green Map platform. Click one open and choose View Map.

Hint for using My OGM - move your cursor horizontally from section to section. If you have a long list of maps, clicking the My Account is a better option for you.

Drupal: Drupal is the backbone software of the Open Green Map participatory mapping platform. It is a content management system (very flexible database for multiple users and formats of content) co-created and constantly improved by users around the world. As seen at, it’s free, and like most open source applications (user generated software), it’s an evolving software. Drupal has allowed us to build in many innovative ways to view our maps as well as the profiles and resources at

Google: OGM also uses the Google Map API that let us merge our icons, local knowledge and the Google Map platform to display the Open Green Maps. Free and familiar to an ever-growing global audience, this technology is very important to OGM's usability around the world!. We have more to thank Google for, as we also use their excellent website Analytics, AdWords and Search that help new users find our websites.

Server: OGM's dedicated, carbon neutral server is donated by Pair Networks. A terrific boon to Green Map System, pair has given us great technical support for many years, too. Find out more this and other Sponsors on the bottom menu.

Icons and other Green Map resources: The nonprofit Green Map System was created with a collaborative open source spirit, which we called the 'gift economy' when the global program was initiated in 1995. Much of what you see here and at comes from the network of Green Mapmakers who want to share love their home with the world. It's not 100% open, though - the Green Map® Icons are copyrighted and the name Green Map® is trademarked by Green Map System, Inc. as we opted to protect our iconography and identity from potential misuse.

The data is stored on Green Map's server (this carbon neutral dedicated server is donated by Pair Networks). Google provides the base map, which we and many other websites around the world use though their API. OGM's uniqueness merges the Green Map Icons, local knowledge, Google Map and Drupal and other open source technologies.

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