Voters have no reason to trust government pledges that flights on the new runway will be limited to environmentally sound aircraft.

ECONOMIST: Airport expansion

The only things that cannot be disposed of in an environmentally-sound way are the heavily contaminated or mixed materials like cat litter and disposable nappies.

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It's a prime example of how a small, environmentally sound farm can work and be profitable.

NPR: In Agriculture, Bigger Isn't Always Better