Climate change could kill off half the trees in Kew Gardens
Kew’s Royal Botanical Gardens has released a plan on how to deal with rapid global warming and climate change, responding to fears that it could suffer from extreme tree loss.
In the past few years, temperatures in the UK have reached record-breaking highs, with 2022 being the country’s hottest year on record and 2023 not lagging far behind. For Kew, droughts in 2022 caused major concern, causing 400 trees to die in the year – a mammoth increase in tree deaths compared to the annual average of 30.
Kew’s plan, titled ‘Planting for the Future’, maps how the garden intends to plant trees according to projected climate change and affects. These predictions are based on climate mapping, using rising temperatures, sea levels, novel plant pests and diseases and changing rainfall to model changing climates. These figures also show Kew losing over 50 percent of its species, with additional modelling suggesting a lesser 30 percent.
The models show common British trees, such as the silver birch and common oak, are most at-risk. They also show which trees from around the world are already adapted to where Britain’s climate will be – predicted in 2050 to resemble the climate of Barcelona in 2019.
However, current Kew species like the common oak are already found in different environments, stretched across Europe to West Russia and Kazakhstan. By planting these variants, Kew intends to continue to support native species and help with biodiversity, an important tool in preventing disease