( ed that a modest increase of 10% green ...)Modest Increase in Urban Parks Could Equalize Global Warming Until 2080s,Health

ed that a modest increase of 10% green space reduced surface temperatures in the urban environment by 4C, which would overcome temperature rises caused by global warming over the next 75 years, effectively climate proofing our cities, said Dr Ennos.

"By the 2080s, our summers will be hotter and drier but winters are predicted to become wetter. An extreme wet winters day by the 2080s will deliver almost 50% more rain than is currently experienced. Based on an existing model, we have calculated that these more powerful storms would increase the amount of run-off from urban areas by more than 80%. Unfortunately, increasing the amount of green space only has a limited effect in reducing run-off and so flash flooding will become an increasing problem in our cities, he said.

"Conversely, the warmer, drier summer months will reduce the amount of water available to plants and, during the longer droughts, this will reduce transpiration with its associated cooling effect.

"In order for the cooling effect of green spaces to work when it is most needed, cities would need to develop ways to store additional water, which could then be used to irrigate the green spaces during drier months, he added.

Dr Ennos worked on the project with Professor John Handley and Dr Susannah Gill in the School of Environment and Development.

The findings appear in the journal Built Environment.


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