The European Union has said it will not back down on plans to introduce an aviation emissions trading scheme despite failure to reach an international agreement.
Scottish local authorities and caterers who provide food for schools, hospitals and other public sector sites have been asked to support the country's food industry by buying more local produce.
The mayor of New York has examined the impact of London's congestion charging zone as he moves towards introducing a similar policy in Manhattan.
Government has added 24 streams, rivers and estuaries to its list of waterways that are threatened by pollution - and require more attention from the companies that run treatment plants which discharge into them.
Irish householders are smashing targets for recycling waste electrical and electronic equipment.
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