Reuters: Australia’s Westpac bank has begun buying carbon offsets from New Zealand forest owners with the aim of selling them to big polluting firms as part of the country’s emissions trading scheme, the bank said on Tuesday. The bank has approached about 600 foresters to pool carbon offsets issued to them to sell in large lots to firms such as refiners and cement makers that will have to meet carbon costs under the scheme. New Zealand’s emissions trading scheme (ETS), only the second …