Energy efficiency and the adoption of related technology are two ways in which a farm business can improve its competitiveness and lower its carbon footprint.

Barack Obama has moved ahead with even tougher greenhouse gas cuts on American power plants, aiming to jolt the rest of the world into action.

Global food giant Kellogg’s will set targets to cut greenhouse gas emissions from its worldwide supply chain, it announced yesterday, responding to consumer pressure to be accountable for its contribution to climate change.