More trees may appear in cities to deal with heatwave from climate change

Tree planting in the city centers requires “getting tough and going rapidly” so that they can help keep them cool ahead of future deadly heatwaves, said a specialist.

Scientists working on the problem have said that planting more trees can reduce air temperature up to 5C (41F).

The team of Cardiff University said that the external route along the brrees – roofs that improve the airflow – water features and curved buildings can also deal with the issue, but planting more trees should be a priority.

According to Philip Jones, professor at the Welsh School of Architecture, the temperature decrease from tree coverage was “significant”, who led the collaboration with researchers in Hong Kong.

The UK’s Climate Change Committee had earlier stated that heat -related deaths in 2022 could increase from 3,000 to more than 10,000 in the average year by 2050.

The Cardiff University team earlier models how rising temperatures can affect people in Cardif, Newport and Wrexham cities.

Our bodies try to keep the main temperature of about 37C (98F), but in warm weather, the body should work hard to keep its original temperature down, which can potentially cause fatal heat tiredness.

The latest research of the team measured the success of green interventions and shows the results that planting trees can cause a solid difference.

Prof. Jones said that to cool an area by 4-5C (39–41F), “We have received somewhere to increase tree coverage in order of 30–40%”.

The team’s computer model was designed in collaboration with researchers at Tsihua University Shenzhen International School and to verify the data, the team took a specially adapted bike around cardif during a hot magic to measure the difference in temperature between shaded and exposed areas.

He focused on Granjtown, where efforts have already been made to plant more and where the maximum tree cover is likely to be 38%.

According to Pro Jones, it is “much higher than specific interventions”, but reaching that level can reduce the average air temperature between 1.4C and 4C.

In 2020, Natural Resources Wales (NRW) found that Cardif had a 15.1%canopy cover, Bangore was 18.6%, Wrexham was 14%in Wrexham, 18.4%in both Swanasi and Newport.

Nuport has ambitions To increase your tree cover up to 25% But this requires an additional 30,000 trees and is expected to take 10 years.

Peter Frost, an urban green infrastructure advisor for NRW, said that planting of large tree species should begin immediately.

He said that the law of Wales meant “every new building that requires the permission of planning should be naturally dried”.

Water companies were also considering this, they said, because they can no longer fit the amount of rain water that are going into the joint sewer “.

He said: “So it has a system where we are using natural methods to deal with rain and this gives us a big opportunity to put trees.

“So they are thinking about re -starting permanent drainage systems in our streets. And there is a great opportunity to insert trees there. But we need to go fast and we need to be difficult on it.”

He said that if urban areas can reach the upper ends obtained with planting of trees, then there can be significant effects.

The umbrella of a tree of 40% or more means that there is less space between trees so that the pavement and walls are not as hot as they are in the shade and it will keep the cities cool overnight.

“And when we see most people dying of heat stress during heatwave, when they cannot cool overnight,” he said.

Mr. Frost stated that the trees brought more benefits during winter when the daylights were bright because the leaves fall from the deciduous trees, “This less, the angleed winter sun can make its way in buildings and make you heated, and then you don’t need to spend so much on heating”.

Met office modeling estimates that the UK has higher temperatures higher than 40C Can be considered calm by the turn of the century,

People living in cities are more at risk than heatwave than in rural areas Urban heat island effect When the heat is trapped by tall buildings, absorbed by the Turmac and concrete and released by heating and air conditioning.

Green spaces pass through a procedure by increasing the medium temperature and water volume through shading, which is called evaporation, but urban areas have less shaded locations.

Prof. Jones has seen measures to reduce the effects of heat in places like Hong Kong, Singapore and Miami.

In Singapore, where the temperature in the city center can be 7C (45F) warm, out, authorities are incorporating open spaces around buildings and light colors on walls and roofs, as well as increasing the amount of greenery in the city.

About half of Singapore is now green space and more than 500,000 trees have been planted since 2020 – with a target of one million by 2030.

All effective ways to reduce temperature without the need for air conditioning air conditioning are all effective ways to make the corners of separate building curves.

But as trees are cheap and take time to reach full maturity, Prof Jones said that Britain cities should start planting as much as possible now.

The Welsh government said: “Trees on the streets and in parks play an important role in helping us in supporting the effects of a changing climate and supporting wildlife in urban areas.

“Our Woodlands for Wales Strategy It is said that how we want trees to be used more creatively in green infrastructure and in urban areas to provide better quality, easily to people with accessible green space. ,