Environment + Energy – Articles, Analysis, Comment

Displaying 426 - 450 of 1736 articles

Drinking water is the easiest source of ‘forever chemicals’ to treat when trying to reduce our overall exposure to these substances. (Shutterstock)

Here’s how to remove some persistent pollutants from your drinking water at home

‘Forever chemicals’ can be detected almost anywhere using the right analytical equipment. This raises concerns about the health effects of current exposure levels.
A dense cyanobacterial bloom is seen in the Kyiv Water Reservoir during an extreme heatwave near Kyiv, Ukraine in November 2020. While common across the world, Lake Superior has historically been too cold to host cyanobacterial blooms — until now. (AP Photo/Efrem Lukatsky)

Climate change is causing algal blooms in Lake Superior for the first time in history

The spectacular landscapes and pristine waters of the north shore of Lake Superior, which once provided inspiration for the Group of Seven, are now vulnerable to algal blooms.
Workers at the Cenovus Christina Lake oilsands facility near Fort McMurray, Alta., in April 2024. THE CANADIAN PRESS/Amber Bracken

Oilsands workers are resistant to sustainable jobs, new research finds

Creating sustainable jobs that are regionally accessible, locally meaningful and economically desirable is the next big hurdle for Canadian policymakers aiming for a net-zero energy economy.
VR headsets let users explore natural settings like beaches, greenery and oceans, choosing the time of day and the weather. (Shutterstock)

Why virtual reality nature can’t provide the same wellness benefits as the real thing

It’s good for people to spend time in nature. But do those benefits extend to ‘virtual nature’ — experiencing the outdoors through a virtual reality headset?
Not all introduced species are a problem. The introduced Siberian Elm is an example of an “invasive” species which adapts well to its new ecosystem, providing benefits at the same time. (Shutterstock)

Climate change means we may have to learn to live with invasive species

Invasive species are not always harmful; some can even provide key benefits to native habitats in an era of climate change. Canadian conservation efforts should embrace the movement of species.
Invasive species (including the plant species, Eurasian watermilfoil, pictured here) pose a real risk to many of Canada’s freshwater habitats. (Shutterstock)

Invasive species are reshaping aquatic ecosystems, one lake at a time

Freshwater ecosystems in Canada, and around the world, are more fragile than they look and vulnerable to invasive species. Canada’s lakes and rivers require constant vigilance to protect from invasion.
Cyanobacteria blooms. (Christophe Langevin)

Monitoring the health of lakes through the microbes that live in them

New techniques monitor the health of lakes in real time by analyzing their microbiome to anticipate and respond to environmental threats such as cyanobacteria.
A small-scale mine (left) operates beside Dredge No. 4 (right), near Dawson City, Yukon in August 2021. Dredge No. 4 is now owned by Parks Canada, and operates as a museum. Small and medium scale mines sometimes re-mine tailings left by large-scale placer mining, which allows for reclamation. (Cassia Johnson)

Slow mining could be a solution to overconsumption in an increasingly fast‑paced world

The mining industry could learn a lot from the slow fashion and food movements. New research from the Yukon shows how slow mining can be a viable path forward.
Students walk past ExxonMobil flags as they arrive to a job fair at the University of Guyana in Georgetown, Guyana, April 21, 2023. (AP Photo/Matias Delacroix)

How the oil and gas industry influences higher education

The fossil fuel industry uses universities to authenticate themselves as players in developing climate solutions, while they expand extraction and grow profits. Universities must disclose their ties.
The remains of a hotel in Jasper, Alta. after a wildfire in July 2024 forced an evacuation of the national park and destroyed over 300 of the town’s approximately 1,100 structures, mainly impacting residential areas. THE CANADIAN PRESS/Amber Bracken

What is societal collapse? Lessons from the past can help us understand our future, but only to a point

Societal collapse is a complex phenomemon tied to the abilities of a society to meet its population’s basic needs. Understanding past examples of collapse can provide valuable insights.
People cross the Fraser River on a pedestrian bridge from Vancouver to Richmond, B.C., during a Walk for Mother Earth march to the B.C. Legislature organized by Extinction Rebellion, in 2021. THE CANADIAN PRESS/Darryl Dyck

A ‘river of experience’: How many ways of knowing feed a course on the climate crisis and actions

A course exemplifies one way group collaboration to address the climate crisis can begin: with each person identifying key moments in their engagement, and contributing this to a larger ‘river’ model.
Water fleas are planktonic crustaceans who live in lakewater and play a vital role in ecosystems. (Shutterstock)

Understanding how human activity impacts zooplankton is essential for managing and protecting lakewater

Zooplankton are microscopic in size, but crucial for regulating aquatic ecosystems and moving nutrients up the food chain. This is affected by human activities including pollution and climate change.
Water reserve cisterns are seen on the roof of a building backdropped by the Ancient Greek Concordia temple in Agrigento, southern Sicily, Italy in July 2024. Climate change is making droughts worse around the world. (AP Photo/Andrew Medichini)

How ‘climate mainstreaming’ can address climate change and further development goals

Efforts to address climate change can learn a lot from the decades-long gender mainstreaming efforts.
Vice President Kamala Harris arrives to speak at the COP28 UN Climate Summit in December 2023. in Dubai, United Arab Emirates. Since she began her run for president, her climate stances have been shrouded in what is likely deliberate ambiguity. (AP Photo/Kamran Jebreili)

Is being vague a virtue? Why Kamala Harris is keeping her climate cards close

In Kamala Harris’s recent appearances, environmental issues have been mentioned only briefly and she seems to be avoiding diving into specifics. The ambiguity is more than likely intentional.
Ice and snow cover on a boreal forest lake in winter (Lake Simoncouche, Saguenay, Québec). (Noémie Gaudreault)

Lakes don’t sleep in winter! There’s a world living under ice

Canadians are no strangers to cold winters, when everything in nature appears to be frozen solid. However, under the ice cover of lakes, many animals remain active during the winter.
There have been calls for a joint approach to tackling climate change and biodiversity loss for years, but to date, co-ordinated global policy is still lacking. (Pixabay/Pat Josse)

A window of opportunity for climate and biodiversity

The United Nations Framework Convention on Climate Change and its Convention on Biological Diversity are separate platforms, but climate change and biodiversity loss urgently require a joint approach.