Fallen autumn leaves are a valuable resource – here's how to make the most of them

Garden leaves make good compost, but street leaves are too polluted.

Anita Carey, PhD Candidate, School of Civil Engineering and Surveying, University of Portsmouth • conversation
Nov. 23, 2023 ~6 min

Satellites zoom in on cities' hottest neighborhoods to help combat the urban heat island effect

Extreme heat waves are putting lives in danger, with some of the hottest urban neighborhoods 10 degrees hotter or more than their wealthier neighbors. Often, these are communities of color.

Daniel P. Johnson, Associate Professor of Geography, IUPUI • conversation
June 14, 2022 ~9 min


Satellites zoom in on cities' hottest neighborhoods, some 10+ degrees hotter, to help combat the urban heat island effect

Satellites like Landsat play a crucial role in helping cities prepare and respond to extreme heat, a leading weather-related killer.

Daniel P. Johnson, Associate Professor of Geography, IUPUI • conversation
June 14, 2022 ~9 min

Removing urban highways can improve neighborhoods blighted by decades of racist policies

Two urban policy experts explain why taking down highways that have isolated low-income and minority neighborhoods for decades is an important part of the pending infrastructure bill.

Julian Agyeman, Professor of Urban and Environmental Policy and Planning, Tufts University • conversation
Sept. 7, 2021 ~9 min

The invasive emerald ash borer has destroyed millions of trees – scientists aim to control it with tiny parasitic wasps

Biological control strategies curb pests using other species that attack the invader. A biologist explains why it can take more than a decade to develop an effective biological control program.

Kristine Grayson, Associate Professor of Biology, University of Richmond • conversation
Aug. 27, 2021 ~8 min

Cities can help migrating birds on their way by planting more trees and turning lights off at night

Cities are danger zones for migrating birds, but there are ways to help feathered visitors pass through more safely

Frank La Sorte, Research Associate, Cornell Lab of Ornithology, Cornell University • conversation
Jan. 15, 2021 ~9 min

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