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A study of more than 2,000 streams around North America found that those altered by human activity are at greater risk of flooding.

The study from the University of Waterloo analyzed the seasonal flow patterns of 2,272 streams in Canada and the U.S. and found that human-managed streams – those impacted by developments like dams, canals, or heavy urbanization – had significantly different flow patterns compared to streams in natural watersheds.

Southern Ontario wetlands provide $4.2 billion worth of sediment filtration and phosphorus removal services each year, keeping our drinking water sources clean and helping to mitigate harmful and nuisance algal blooms in our lakes and rivers.

A new study from the University of Waterloo uses economic valuation to help us understand the importance of Southern Ontario’s wetlands for water filtration – particularly as these sensitive ecosystems continue to be lost by conversion to agriculture or urban development.

Plastics pollution is a global environmental hazard with potentially harmful impacts on wildlife, ecosystem services, and human health and wellbeing. Microplastics in particular are of great concern because of their ability to be transported over great distances and absorb and disperse contaminants widely.

The Amit & Meena Chakma Awards for Exceptional Teaching by a Student recognize up to four students from across the University of Waterloo for excellence in teaching of all kinds (e.g., teaching assistant, laboratory demonstrator, sessional lecturer) by registered students.

This year, two of the four winners were from the Faculty of Science: Melanie Mungalsingh from the School of Optometry and Vision Science, and Quinn Worthington from Earth and Environmental Sciences.

Several years after scientists discovered what was considered the oldest crater a meteorite made on the planet, another team found it’s actually the result of normal geological processes.