Charcoal consumption from these sources is not environmentally acceptable.

The Skitube was deemed to be the most efficient and environmentally acceptable alternative available.

This is possible only if economically feasible and environmentally acceptable methods are available.

No one has figured out a simple, environmentally acceptable method to break those links.

The environmentally acceptable size of fish farms is another unknown.

Don't most meals cook with an environmentally acceptable amount of fuel that's readily available?

His recent work is on environmentally acceptable technologies for the use of fossil fuels.

The process of engineering more environmentally acceptable packages can include consideration of the costs.

A very critical attitude needs to be taken to them and an attempt must be made to support environmentally acceptable solutions.

Alternative energy provides the opportunity for the most profitable and environmentally acceptable non-food use of land.