Here's an idea: In an attempt to prevent slightly warmer weather, why not cut the work week to 21 hours?

A shorter working week would benefit society | Anna Coote | Comment is free | guardian.co.uk

The New Economics Foundation is calling for a move towards a much shorter working week, over a decade or more, with a goal of 21 hours as the new standard. We start from the premise that a return to unfettered growth is not only unlikely, given the state of global capitalism, but also undesirable for developed economies because it is incompatible with reducing carbon on the scale required to keep global warming within manageable limits.
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There is evidence that people who work shorter hours are more productive hour-for-hour, so that's got to be good for business.