Posts tagged with 'urban tree canopy'
On a hot summer afternoon, the difference between one city block and the next can feel like a different world. On one street, the sun beats down from above while the pavement radiates heat from below. Just around the corner, ...
On a hot day in February 2024, volunteers dispersed across Cape Town, South Africa, with sensors affixed to their cars. Their aim was to measure heat differences across the city. In Cape Town’s dense, highly developed center, they recorded air temperatures ...
This op-ed was originally published by Context, the media platform of the Thomson Reuters Foundation, on June 16, 2025. Read the original piece here. A new study has found that 4 billion people – half of the world’s population – endured ...
The way scientists and policymakers measure heat as they seek to combat rising temperatures across the world’s cities requires more nuance than just looking at the daily outdoor temperature. There are a variety of tools that can help show a ...
2024 has been a tumultuous year: More than half the world’s population went to the ballot box — some voting for radical change — extraordinary weather events have devastated communities and countries have been rocked by continued violent conflict. Given ...
In January 2024, the Central Business District of Cape Town, South Africa, endured a historically brutal day of heat: temperatures climbed to 44 degrees C – the highest ever measured in the city. But on that same day, people in other parts ...
On July 22, the world experienced its hottest day in recorded history. The global average temperature reached 17.2 degrees C (62.9 degrees F), prompting UN Secretary-General António Guterres to issue a global call to action on extreme heat. The problem of extreme ...
Alexandra Township is a 20-square-block enclave in the heart of Johannesburg, South Africa’s northern suburbs. Established in 1902, the township was built to house 750,000 residents. Today, it is home to more than 1.2 million. Despite efforts to increase waste ...
This summer the Northern Hemisphere has been so hot with record temperatures — including at sea — that discussions have turned to the limits of human survival. Even in the Antarctic, sea ice is failing to re-form, a drastic departure ...
Climate change is impacting cities and their residents in many profound ways, from poor air quality to flooding to biodiversity loss and extreme heat. Now, with the help of a new tool, select cities can access localized, integrated data to ...
Many people point to forest restoration as a way to curb climate change, where replanted forests sequester carbon in trees and soils. But emerging evidence shows that restoration can provide non-carbon climate benefits, too — in particular, reducing heat and regulating rainfall. Here’s what ...
A New Yorker may not think about the forested Catskills Mountain Range upstate as she pours a glass of water. Londoners probably don’t consider the Amazon rainforest as they watch the rain falling on city parks. And folks in Addis ...
It was a contrast of opportunities and challenges confronting cities around the world highlighted at the Daring Cities forum’s final session on October 28, the culmination of three weeks, 400 speakers and 200 hours of dialogue and knowledge exchange. Mayor ...
The city is a difficult place for a tree to survive. Compared to their counterparts in the countryside, urban trees generally get less water, suffer more intense heat, compete for space with unyielding infrastructure and frequently become riddled with disease ...
What if you could send a WhatsApp message and a colorful green van would deliver free native tree seedlings directly to you? In Salvador, Brazil, the local government does just that. Painted with a picture of a biodiverse Brazilian forest, ...
