How the little-known ‘dark roof’ lobby may be making US cities hotter
30
votes
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How dairy robots are changing work for cows (and farmers)
11 votes -
Photovoltaic-thermal window achieves 3.6% electrical efficiency, provides hot water at 50 C
18 votes -
Longi Green Energy sets world record for crystalline silicon solar module efficiency at 25.4%
13 votes -
The FactoBattery
9 votes -
What your next water heater will look like
27 votes -
Beyond the water flow rate: Water pressure and smart timers impact shower efficiency
12 votes -
Scientists set new solar power efficiency record at almost fifty per cent
8 votes -
Why growth can’t be green
16 votes