According to Greenpeace organization, Amazon, Twitter and Acer are having bad times as they have been considered as feeble performers.
The companies are yearly given grades between A and F and these three websites were among the lowest grades.
Companies are ranked on the basis of:
Clarity over energy use
Renewable energy procurement
How much energy efficiency
Support of public
While supporters of Google and Apple are lucky this year as they got top grades in the Greenpeace report and would go on leading the sector.