Green Roof Co2 Reduction

Reduces the ambient temperature.

Green roof co2 reduction.

Green roofs can be used as a passive technique to reduce co 2 emissions from the atmosphere in urban surroundings because the green roof vegetation and soil layers can through the photosynthesis process capture co 2 from the surroundings velasco and roth 2010. Plants absorb sunlight 50 is absorbed and 30 reflected. The findings add to the already known environmental benefits of green roofs including reducing carbon dioxide decreasing storm water runoff and cutting down on urban heat according to psu. The reduction of co 2 concentration in the region adjacent to the green roof depends on the intensity of the wind.

Studies by environment canada have shown that the upper floor of a building with a green roof is likely to save 20 of its energy demand by reducing its need for cooling. Over time these emission reductions add up to significant amounts. In fact ghg reductions from recycling and composting are often so considerable that they can be compared to avoided tailpipe emissions from vehicles or cars taken off. The summer savings on the top floor of the building would be in the order of 20.

So this helps to create a cooler and more pleasant climate. With a green roof you are contributing to air purification. Like any forested or vegetation covered area a patch of green on top of a roof should theoretically lower levels of carbon dioxide in the air as well. This study also calculated the reduction on floors below the upper floor.

By lowering air conditioning demand green roofs can decrease the associated air pollution and greenhouse gas ghg emissions from conventional power sources. The plants in a green roof filter particulate matter from the air and convert co2 into oxygen. Plants breathe in the greenhouse gas like we. Vegetation can also remove pollutants and ghgs from the air through dry deposition and carbon sequestration and storage respectively.

The weak wind slows down the mixing of co 2 generated by the convection process. Each time you recycle or compost materials instead of discarding them you help reduce greenhouse gas ghg emissions and protect the climate. The weaker the wind is the greater the reduction is 14.