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It has been crazy. We talk about LEED buildings in America and no doubt our British or Australian readers wonder why we call ourselves a trans-national journal when they talk about BREEAM or Green Star. And if you are actually going to try and compare buildings across borders? Forget it.

But now there may be one standard to rule them all; They have joined together and signed a “memorandum of understanding to set up a working group to develop common metrics to measure CO2 emissions from new homes and buildings. It will also aim to align the rating tools of each organization and provide consistency in reporting.” (can you develop metrics in the USA?)

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