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“Grassy parks no longer viable in the face of global heating”: British parks can no longer be modelled on ‘long-dead aristocrats’ with lawn-heavy landscapes due to soaring temperatures, writes Phineas Harper for Dezeen. He proposes planting urban forests to help control city heat and keep green spaces green during summer. Harper writes that there are 150,000 hectares of urban green spaces in Britain, and by turning these large open lawns into small urban forests, the ground temperature will reduce. This would also ensure the urban spaces are habitable even in scorching summer heat. According to research published last year, he writes, “Not only do trees stay green in dry weather, trees can bring down urban temperatures by between 8 and 12 degrees Celsius, providing shade and reducing local evaporation. Which is …