Not harmful to the environment: cycling is an environmentally friendly form of transport
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- Europe's airplane engine manufacturers are now pooling their resources to make flying more environmentally friendly.
- Hydraulic fluids account for about 75 % of the demand for environmentally friendly lubricants, Carnes reports.
- The rooves are made of temperate hardwood which is widely believed to be more environmentally friendly than tropical (rainforest) hardwood.