Houses of Parliament are full of hot air

Thermal images show Houses of Parliament lose £7,191 a year in wasted energy. Scientists worked out the loss using infra red image analysis, which provides quantified C02 loss and heat loss through thermal image.  On the colour spectrum of thermal imaging, dark/navy colours indicate little or no heat loss, bright yellow indicates the most heat loss while red is the middle of the scale.

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[hot air meaning | idioMeanings]

[...] Houses of Parliament are full of hot air [...]