Save the whale? That’s so 1970s. Now it’s the mighty
polar bear that has become the poster child of the environmental movement. But
are polar bears really facing extinction, or are they just a photogenic vehicle
for promoting alarm about global warming?
‘Adopt a polar bear’, suggests the green NGO, WWF. WWF will
even give you a cuddly toy polar bear for signing up. ‘Many scientists believe
polar bears could be gone from most of their current range within 100 years’,
says the WWF website, citing climate change as the major threat to the bears.
Earlier this month, the US tried - and failed - to persuade the Convention on International Trade in
Endangered Species (CITES), to ban cross-border trade in polar bears and their parts.
The US lists the polar bear as a ‘threatened’ species, while the International
Union for the Conservation of Nature lists it as a ‘vulnerable’ species.
The
major claim is that climate change is causing the sea ice in the Arctic to melt
earlier and refreeze later. As the press release for a new paper in the Journal
of Animal Ecology, released today, suggests, this makes life harder for
polar bears. The paper’s researchers tracked female polar bears in the western
Hudson Bay area of Canada from 1991 to 1997, and again from 2004 to 2009.
According to the lead researcher, Dr Seth Cherry: ‘The data suggest that in
recent years, polar bears are arriving on shore earlier in the summer and leaving
later in the autumn. These are precisely the kind of changes one would expect
to see as a result of a warming climate and may help explain some other studies
that are showing declines in body condition and cub production.’
But
before we start getting into a lather about the future of nature’s greatest
land-based killing machines (sorry, I mean big furry canaries in the
climate-change coalmine), it is worth noting that there are more optimistic
voices around. Susan Crockford, an adjunct professor at the University of
Victoria in Canada, has just produced a short paper for the Global Warming Policy
Foundation (GWPF) called Ten Good Reasons Not To Worry About Polar
Bears.
Crockford’s
first point is that polar bears represent a ‘conservation success story’. The
biggest threat to the bears in the past was hunting. Since 1973, when
restrictions on hunting were introduced, it is commonly agreed that polar-bear
numbers have bounced back from a low of around 10,000 to between 20,000 and
25,000. In addition, four sub-populations of polar bears are currently listed
as ‘zero’, says Crockford, because they haven’t been surveyed. Add in those
animals, and she argues that the true population figure could easily be between
27,000 and 32,000.
The
only population shown to have declined in recent years - a
fall in numbers described by Crockford as ‘modest’ - is the one in the western
Hudson Bay area. Even here, claims that polar-bear numbers continue to decline
are based on data that is ‘unpublished, woefully out of date, or both’, says
Crockford. Polar bears have actually shown a remarkable ability to survive and
thrive after months without food.
There’s
also an assumption that the decline of Arctic ice in recent years must be due
to manmade global warming, and that this change in ice conditions must be bad
for polar bears. But global temperatures have barely changed since 1997, while
the minimum level of Arctic sea ice has halved. That suggests other, more
localised factors rather than global warming are responsible. Moreover, as Matt
Ridley notes in an introduction to Crockford’s paper, the ‘ideal habit for
polar bears is first-year ice that lasts well into the summer, when they feed
on fat young seals… The recent trend in most of the Arctic - no change in
winter ice extent but a decline in late-summer ice extent - has been towards
exactly this ideal combination.’
But
striking such an optimistic note does not fit well with the role designated for
the polar bear by greens. As BBC wildlife presenter and ‘national treasure’ Sir
David Attenborough told the Guardian in 2011:
‘The polar bear is… a very charismatic animal that people can identify with.
It’s beautiful, and also savage; it’s got a lot going for it. But it’s only a
white grizzly bear, really. All these big issues need a mascot and that’s what
the polar bear is.’
By
implying that the polar bear is imminently threatened by climate change, and
that the polar bear’s fate is a foretaste of our own, green groups have found a
creature to embody their crusade to cut greenhouse gas emissions. But polar
bears seem anything but in imminent danger. Indeed, WWF argued against any
trade ban by CITES as it might weaken the ability to use polar bears as a focus
for emissions reductions. ‘We have to focus on what is the major threat and not
distract ourselves with a relatively minor one’, WWF’s Colman O’Criodain told BBC News last December.
One of
the oddest things about this issue is how polar bears got this cuddly image. A
quick look at a polar bear killing and eating a seal should disabuse people of the idea
that polar bears are cute. You might as well organise a fundraising campaign to
‘adopt a shark’.
Nonetheless,
asking people to ‘adopt a polar bear’ seems to be a great vehicle for
fundraising, even though WWF says that the money given will be used
for ‘raising awareness of the threats of climate change that we all face’ and
‘will also help fund other essential WWF conservation work around the world’.
In other words, those monthly donations may only tangentially benefit polar
bears.
The
claim that polar bears are under threat is a cynical attempt at emotional
blackmail, designed to short-circuit debate about climate change while adding
cash to the overflowing coffers of multinational green mega-NGOs. WWF alone
reported a worldwide income of over €500 million in 2011. Given the apparent health
of most polar-bear populations, it’s time the whole fairy tale about polar-bear
extinction was put on ice.
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