by David Suzuki
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| Hydro-power in the Yukon |
Some people think a widespread shift from fossil fuels to cleaner
energy sources is not practical or even possible. You’ve probably heard
the arguments: wind doesn’t always blow, sun doesn’t always shine, the
technology’s not advanced enough, installations take up too much space,
we need sources of baseload power that can only come from fossil fuels
or nuclear power. And so we carry on, rushing to squeeze every last drop
of oil and gas from the ground using increasingly difficult and
destructive methods like fracking, deep-sea drilling and oil sands
extraction, with seemingly little concern for what we’ll do after we’ve
burned it all.
A lot of research is challenging those skeptical assumptions,
including some by the David Suzuki Foundation, working with the Trottier
Energy Futures Project. “Canada has vast renewable energy resources in
the form of hydropower, solar, wind energy, and biomass, as well as
geothermal, wave, and tidal resources that are many times larger than
current or projected levels of total fuel and electricity consumption,”
the recent Trottier report, “An Inventory of Low-Carbon Energy for
Canada”, concludes.
Those findings are confirmed by research and experience elsewhere in
the world. A study by engineers at Stanford University reports, “it is
technically and economically feasible to convert New York's all-purpose
energy infrastructure to one powered by wind, water and sunlight,” and
doing so “shows the way to a sustainable, inexpensive and reliable
energy supply that creates local jobs and saves the state billions of
dollars in pollution-related costs.”
An article in the New York Times points to research by the
Paris-based International Energy Agency, showing, “Thirteen countries
got more than 30 percent of their electricity from renewable energy in
2011.”
The Stanford study’s lead author, engineering professor Mark Z. Jacobson, told the New York Times,
“You could power America with renewables from a technical and economic
standpoint. The biggest obstacles are social and political — what you
need is the will to do it.”
It would be even less of a challenge in Canada. Thanks in part to our
abundant hydro resources, we produced more than 63 per cent of our
electricity with renewable sources in 2011. The U.S. produced 12.3 per
cent.
The biggest obstacles in shifting to clean energy may be social and
political, but one of the greatest challenges is creating a “smart”
electricity grid. As Trottier Project managing director Ralph Torrie
says, we’ll have to replace our antiquated grid with one that “will use
information technologies to balance a wider range of supply sources,
energy storage, interprovincial transfers of electricity and a wide
variety of energy management and efficiency tools.” Because the current
system is due for an overhaul, now is an ideal time to invest in
reconfiguring it.
Other challenges include the costs and the impacts of renewable
energy installations on ecosystems and wildlife. And with biofuels, the
sustainability of source materials and effects on land and food supplies
must also be considered. But these are far from insurmountable. Fossil
fuel and nuclear power sources are also extremely costly and have far
greater environmental impacts. And many studies show that moving to
renewables creates jobs and contributes to economic health.
The recent Trottier study looked at Canada’s potential in the context
of reducing energy-related greenhouse gas emissions by 8o per cent by
2050 – a necessary target if we are to do our part to combat climate
change. Reaching that target will also require becoming more efficient
in the ways we produce and consume fuels and electricity. This means
looking at our individual behaviours as well as considering our habits
and practices for everything from public transportation to building
design to manufacturing.
Sure, it will be a challenge. But the alternative – to carry on
polluting air, water and soil and putting our future at risk with global
warming – isn’t pretty. We’ve faced and overcome many challenges
before. When people have mobilized resources in the past, we’ve been
able to accomplish a lot in relatively little time – from defeating the
fascist threat in the Second World War to putting people on the moon.
Finding smarter ways to power our societies is something we can and must do.
Dr. David Suzuki is a scientist, broadcaster, author and
co-founder of the David Suzuki Foundation. Written with contributions
from David Suzuki Foundation Communications Manager Ian Hanington.