Top Stories

New U of T Engineering Study Identifies Sources of Indoor Air Pollution in Toronto Subway System

A team of University of Toronto researchers, led by Professor Greg Evans (ISTEP, ChemE) and Keith Van Ryswyk (ChemE PhD 2T3), is working to better understand the sources of air pollution in the Toronto Transit Commission (TTC) subway system — an important first step towards improving its indoor air quality.  

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Scorching Storms on Distant Worlds Revealed

Astronomers have created the most detailed weather report so far for two distant worlds beyond our own solar system.

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New Solutions to Keep Drinking Water Safe as Pesticide Use Increases Worldwide

Water scientists from Australia and China have proposed a more effective method of removing organic pesticides from drinking water, reducing the risk of contamination and potential health problems.

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El Niño Exits

After heating up the eastern Pacific Ocean for about a year, El Niño finally died out in May 2024. 

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2023 Rolling Hills Estates Landslide Likely Began the Winter Before

Californians are familiar with landslides that occur around storms, when saturated soil and rock loses its grip and slips from its perch on the substrate. 

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Complex Impact of Large Wildfires on Ozone Layer Dynamics

In a revelation highlighting the fragile balance of our planet's atmosphere, scientists from China, Germany, and the USA have uncovered an unexpected link between massive wildfire events and the chemistry of the ozone layer.

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Forest Carbon Storage Has Declined Across Much of the Western Us, Likely Due to Drought and Fire

Forests have been embraced as a natural climate solution, due to their ability to soak up carbon dioxide from the atmosphere as they grow, locking it up in their trunks, branches, leaves, and roots.

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Wild Plants and Crops Don’t Make Great Neighbors

Native plants and non-native crops do not fare well in proximity to one another, attracting pests that spread diseases in both directions, according to two new UC Riverside studies.

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Study Finds Natural Selection Favors Cheaters

Mutualisms, which are interactions between members of different species that benefit both parties, are found everywhere — from exchanges between pollinators and the plants they pollinate, to symbiotic interactions between us and our beneficial microbes.

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Extreme Heat Hammers U.S. Coasts

In June 2024, early summer heat waves hit both the western and eastern United States. Temperatures in July have not brought much relief.

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