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Ecologists at the University of Toronto are sounding the alarm after measuring the scale of human response needed to reduce future levels of plastic in the world’s aquatic ecosystems and manage what’s already floating around out there.

The fire is among the largest Los Angeles County has ever faced.

For just over two decades, students and post-doctoral researchers working with the University of Toronto’s Kimberly Strong and Kaley Walker have traveled to Eureka, Nunavut, in the Canadian High Arctic each spring to make unique measurements of atmospheric trace gases.

After decades of low water levels, two of Iraq’s popular lakes appear to be filling again.

By combining satellite measurements with ship-based sonar data, researchers are working to fill the gaps in coastal ocean maps.