Why is it so hot at night in some cities?

During the nighttime, it is hotter in the city than in nearby suburbs or the countryside. But just how much hotter differs between cities. Researchers from the MSE2 (CNRS / MIT) international joint research laboratory and ...

Urban heat island effects depend on a city's layout

The arrangement of a city's streets and buildings plays a crucial role in the local urban heat island effect, which causes cities to be hotter than their surroundings, researchers have found. The new finding could provide ...

How urban heat affects bee populations

North Carolina is home to 500 species of wild bees, yet only a subset of these are common in cities and suburbs. People encourage wild bees by planting flowers and creating pollinator gardens to provide the pollen and nectar ...

Show me your leaves—Health check for urban trees

Trees are known to provide a whole range of benefits to people living in cities. For instance, they reduce air pollution and provide cooling through respiration and shade. When trees become unhealthy, these benefits decline ...

Millions of city trees at risk from rising temperatures

A new study has found that almost one quarter of trees in Australian cities are at risk from increasing temperatures in urban environments due to climate change and urban heat islands, posing a threat to some tree species ...

Urban trees are growing faster worldwide

Trees in metropolitan areas have been growing faster than trees in rural areas worldwide since the 1960s. This has been confirmed for the first time by a study on the impact of the urban heat island effect on tree growth ...

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