Kyoto Protocol – 60% reduction by 2050 (vs 1990)
BERR (2008) Strategy for Sustainable – 26% reduction by 2020 (vs 1990)
A green roof reduces the carbon dioxide in the air. Photosynthesis is a process plants use to make energy for themselves. During photosynthesis plants take in carbon dioxide and release oxygen into the air.
A 1000 m2 of green roof can absorb 5 tonnes of carbon emissions a year, every year after the day after the green roof is installed.