Scientists worldwide accept that Earth is warming at an unusually rapid rate, that humans are primarily responsible, mainly by burning fossil fuels, and that the consequences for humanity will be disastrous if we don't take immediate, widespread action. The U.S. Defense Department calls climate change a security risk...

As leaves change colour and drop from trees, and a chill in the air signals the approach of winter, many of us are thinking of the fall harvest and hearty soups and dishes that will soon warm our bellies.

Not everyone is lucky enough to enjoy such thoughts. About

I've often thought politicians inhabit a parallel universe. Maybe it's just widespread cognitive dissonance, coupled with a lack of imagination, that compels them to engage in so much contradictory behaviour. Trying to appease so many varying interests isn't easy.

Rather than focusing on short-term economic and corporate priorities, though, politicians...

In late September, Inuit artist Annie Pootoogook died tragically in Ottawa. Pootoogook was an award-winning illustrator from Cape Dorset, Nunavut. Her ink-and-crayon depictions of everyday life in the north -- families sitting to eat a meal of seal meat or shopping at the Arctic co-op -- received international...

Life evolved to live within limits. It's a delicate balance. Humans need oxygen, but too much can kill us. Plants need nitrogen, but excess nitrogen harms them, and pollutes rivers, lakes and oceans. Ecosystems are complex. Our health and survival depend on intricate interactions that ensure we get the right...

Salmon have been swimming in Pacific Northwest waters for at least seven million years, as indicated by fossils of large saber-tooth salmon found in the area.

During that time, they've been a key species in intricate, interconnected coastal ecosystems, bringing nitrogen and other nutrients from the ocean...

In July, Solar Impulse 2 became the first airplane to fly around the world without using fuel. At the same time, the U.S. National Aeronautics and Space Administration has been working on electric planes. These developments mean air travel and transport could become more environmentally friendly,...

Humans are the world's top predator. The way we fulfil this role is often mired in controversy, from factory farming to trophy hunting to predator control. The latter is the process governments use to kill carnivores like wolves, coyotes and cougars to stop them from hunting threatened species like caribou...

It's been shocking to watch news of the Brexit vote in Britain, Donald Trump's promise to build a wall between Mexico and the U.S. and the ongoing threats and violence against ethnic minorities in many parts of the world. I'm not a political or social scientist, but my training as...

Humans are fast becoming city dwellers. According to the United Nations, "The urban population of the world has grown rapidly from 746 million in 1950 to 3.9 billion in 2014." Sixty-six per cent of us will likely live in urban environments by 2050. The number of mega-cities (more...

The Arctic's Baffin Bay and Davis Strait region is home to seals, bowhead whales, polar bears and up to 90 per cent of the world's narwhals. The area's marine waters also provide habitat for 116 species of fish, such as Arctic char, an important dietary staple for Nunavut's...

Canadians of all political persuasions care about climate action. Watching Canada fall behind the rest of the world over the past 10 years has been deeply disturbing to many. We became climate laggards. We yearn to be leaders.

The hope that Canada would act on scientific evidence and contribute...

Alberta is home to two of Canada's imperilled caribou populations, the southern mountain and boreal woodland herds. Both are threatened with extinction.

Under the federal Species at Risk Act, the boreal woodland caribou recovery strategy requires provinces to develop range plans by 2017, outlining paths to recovery. Because...

The shift from fossil fuels to renewable energy is occurring mainly at the power plant level. But what about transportation? Can we significantly reduce greenhouse gas emissions by switching to cleaner fuels? Or is this just an attempt to keep 20th century technology chugging along while trading one set of...

Industrial activity has profoundly affected the Blueberry River First Nations in Northern B.C. A recent Atlas of Cumulative Landscape Disturbance, by the First Nations, the David Suzuki Foundation and Ecotrust, found 73 per cent of the area inside its traditional territory is within 250 metres of an industrial...

People have harnessed energy from moving water for thousands of years. Greeks used various types of water wheels to grind grain in mills more than 2,000 years ago. In the late 1800s, people figured out how to harness the power to produce electricity. Throughout the 20th century and into the...

Feeding more than seven billion people with minimal environmental and climate impacts is no small feat. That parts of the world are plagued by obesity while starvation is rampant elsewhere shows part of the problem revolves around distribution and social equity. But agricultural methods pose some of the biggest challenges.

We're living in a time of records.

More renewable energy came on stream in 2015 than ever -- 147 gigawatts, equal to Africa's entire generating capacity -- and investment in the sector broke records worldwide. Costs for producing solar and wind power have hit record...

First-time visitors to Australia are often drawn to the big city attractions of Sydney and Melbourne or the fabulous beaches of Queensland's Gold Coast. I've always had a soft spot for Adelaide in South Australia, a city built more on a human scale, where downtown can be easily navigated on...

In the early 1990s, Germany launched Energiewende, or "energy revolution," a program "to combat climate change, avoid nuclear risks, improve energy security, and guarantee competitiveness and growth." Renewable energy grew from four per cent in 1990 to more than 27 per cent in 2014, including a significant increase in citizen-owned...