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 — even though human activity is the root cause of caribou’s decline.
Browsing: David Suzuki
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 a biologist gives me some insight.
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 caribou need large, intact areas, degraded habitat must be restored so industrial and natural disturbances affect no more than 35 per cent of each range.
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 environmental problems for another?
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 21st, hydropower has expanded, producing about 17 per cent of the world’s electricity by 2014 and about 85 per cent of renewable energy — and it shows no signs of slowing.
Over the past half century, the world has moved increasingly to industrial agriculture — attempting to maximize efficiency through massive, often inhumane livestock operations; turning huge swaths of land over to monocrops requiring liberal use of fertilizers, pesticides and genetic modification; and reliance on fossil fuel-consuming machinery and underpaid migrant workers. This has contributed to increased greenhouse gas emissions; loss of forests and wetlands that prevent climate change by storing carbon; pollution from runoff and pesticides; antibiotic and pesticide resistance; reduced biodiversity; and soil degradation, erosion and loss.
Following our recent article by David Suzuki entitled “Broken Records Define the Climate Crisis”, we have been contacted by Tom Harris of the International Climate Science Coalition, Ottawa, Ontario who wanted us to publish the following statement addressing some of the issues raised in the original piece.
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 bike, foot or tram. For me, Adelaide’s greatest attraction is a huge market right in the city’s center.