Companies that are green purchase power that is generated from renewable or non-polluting energy sources like solar and wind.
Another way that companies can reduce their impact on the environment is to become carbon neutral. That is, they "offset" their carbon emissions by participating in projects that reduce carbon in the atmosphere, like planting trees.

Our clients usually need web hosting services as well as website design and development. We do not host on our own servers, but prefer to entrust the hosting of our clients websites (and this website) to businesses with hosting as their primary focus. We use companies that are focused on reliability, customer service and value.
After much research (and experience), we are pleased to provide this short list of companies that we think represent the best values in hosting today. We evaluated them on reliability, price, features, customer service, company values and ease of use. We are very comfortable recommending any of them to our clients.
They all offer excellent service and support, extensive features and are very inexpensive. In addition, one of the hosts listed below have taken steps to lessen their impact on the environment.
No affiliate links are included here. Just sharing!
The two hosting companies listed below are both excellent choices for WordPress hosting. Not all hosting is created equal when it comes to WordPress. In order to have a secure, fast-loading WordPress site, the proper hosting environment is necessary. Search engines are now adding site speed to their ranking algorithms.
BlueHost http://bluehost.com
HostGator http://hostgator.com
Note: HostGator is "green" or environmentally friendly hosting. See the sidebar for an explanation.
Magento is a powerful ecommerce platform and also requires the proper environment to insure your site is secure and fast-loading.
SimpleHelix http://simplehelix.com