Feeds:
Posts
Comments

Posts Tagged ‘north america’

I was scanning my blog stats the other day – partly to see if people were reading my new post on the Blue Mountains bushfires, partly because I just like graphs – when I noticed that an article I wrote nearly two years ago was suddenly getting more views than ever before:

The article in question highlights the scientific inaccuracies of the 2004 film The Day After Tomorrow, in which global warming leads to a new ice age. Now that I’ve taken more courses in thermodynamics I could definitely expand on the original post if I had the time and inclination to watch the film again…

I did a bit more digging in my stats and discovered that most viewers are reaching this article through Google searches such as “is the day after tomorrow true”, “is the day after tomorrow likely to happen”, and “movie review of a day after tomorrow if it is possible or impossible.” The answers are no, no, and impossible, respectively.

But why the sudden surge in interest? I think it is probably related to the record cold temperatures across much of the United States, an event which media outlets have dubbed the “polar vortex”. I prefer “Arctic barf”.

Part of the extremely cold air mass which covers the Arctic has essentially detached and spilled southward over North America. In other words, the Arctic has barfed on the USA. Less sexy terminology than “polar vortex”, perhaps, but I would argue it is more enlightening.

Greg Laden also has a good explanation:

The Polar Vortex, a huge system of swirling air that normally contains the polar cold air has shifted so it is not sitting right on the pole as it usually does. We are not seeing an expansion of cold, an ice age, or an anti-global warming phenomenon. We are seeing the usual cold polar air taking an excursion.

Note that other regions such as Alaska and much of Europe are currently experiencing unusually warm winter weather. On balance, the planet isn’t any colder than normal. The cold patches are just moving around in an unusual way.

Having grown up in the Canadian Prairies, where we experience daily lows below -30°C for at least a few days each year (and for nearly a month straight so far this winter), I can’t say I have a lot of sympathy. Or maybe I’m just bitter because I never got a day off school due to the cold? But seriously, nothing has to shut down if you plug in the cars at night and bundle up like an astronaut. We’ve been doing it for years.

Advertisements

Read Full Post »

Because of our emissions of greenhouse gases like carbon dioxide, a little extra energy gets trapped in our atmosphere every day. Over time, this energy builds up. It manifests itself in the form of higher temperatures, stronger storms, larger droughts, and melting ice. Global warming, then, isn’t about temperatures as much as it is about energy.

The extra energy, and its consequences, don’t get distributed evenly around the world. Weather systems, which move heat and moisture around the planet, aren’t very fair: they tend to bully some places more than others. These days, it’s almost as if the weather picks geographical targets each season to bombard with extremes, then moves on to somewhere else. This season, the main target seems to be North America.

The warmest 12 months on record for the United States recently wrapped up with a continent-wide heat wave and drought. Thousands of temperature records were broken, placing millions of citizens in danger. By the end of June, 56% of the country was experiencing at least “moderate” drought levels – the largest drought since 1956. Wildfires took over Colorado, and extreme wind storms on the East Coast knocked out power lines and communication systems for a week. Conditions have been similar throughout much of Canada, although its climate and weather reporting systems are less accessible.

“This is what global warming looks like,”, said Professor Jonathan Overpeck from the University of Arizona, a sentiment that was echoed across the scientific community in the following weeks. By the end of the century, these conditions will be the new normal.

Does that mean that these particular events were caused by climate change? There’s no way of knowing. It could have just been a coincidence, but the extra energy global warming adds to our planet certainly made them more likely. Even without climate change, temperature records get broken all the time.

However, in an unchanging climate, there would be roughly the same amount of record highs as record lows. In a country like the United States, where temperature records are well catalogued and publicly available, it’s easy to see that this isn’t the case. From 2000-2009, there were twice as many record highs as record lows, and so far this year, there have been ten times as many:

The signal of climate change on extreme weather is slowly, but surely, emerging. For those who found this summer uncomfortable, the message from the skies is clear: Get used to it. This is only the beginning.

Read Full Post »

Cross-posted from NextGen Journal

This weekend, 10 000 young people converged in Washington, D.C. and protested the American government’s inaction on climate change. Students stood in front of government buildings wearing green hard hats, holding signs saying “Make Polluters Pay, Not the EPA”. Students stormed the House of Representatives and sang a song about climate change, to the tune of the American national anthem. Fifteen minutes with President Obama, who agreed with their concerns but said “I can’t do this alone”, was PowerShift 2011’s biggest accomplishment.

This isn’t working.

The climate change mitigation lobby is currently a fringe group, at least in North America. It’s mostly made up of university students who mimic the campus protests of the 1960s, creating images that scream “socialism” to baby boomers who witnessed the original events. Governments, which are mostly made up of said baby boomers, largely ignore such fringe groups. Elected officials say what they think people want to hear, and most people don’t seem to care about climate change.

So what should we do instead? We don’t have a lot of money or connections to wealthy businesses. Youth don’t even vote in large enough numbers for governments to care what they want. What we do have, however, are facts on our side. We have the weight of the entire scientific community, agreeing that humans are causing a potentially catastrophic climate change which will only be stopped by major international action.

Instead of attempting to communicate with elected officials by marching around in front of their offices with our faces painted, I think we should focus our efforts on the public. If governments think people don’t care about climate change, we have to reverse that trend.

I believe that anyone who truly understands this issue will care about it and want to fix it. Who could honestly examine the overwhelming evidence for anthropogenic climate change and still have reasonable doubts about its existence? Who wouldn’t want to prevent future wars, famines, extinctions, and waves of environmental refugees? Of course, there are the crazies who will scream about “climate scientists in Al Gore’s pocket” and “the world needs more CO2” no matter what we tell them, but we shouldn’t bother engaging with these people. Instead, we should engage with those who are constantly exposed to the crazies, and who are at risk of dismissing climate change because they think people are still debating its existence.

We need public education to create a social movement, but not like the “Green Movement” in 2007 when magazines everywhere advertised “10 easy ways to reduce your carbon footprint”. We need people to understand the severity of climate change, and to see that planting a tree and buying organic lettuce will not solve the problem. We need people to understand that meaningful action, such as putting a price on carbon, is necessary to solve the problem.

Climate change education will spread most easily through the media, whether it is mass media or new media. People need to be aware of the level of scientific support surrounding this issue, and the reality that climate scientists are not ignorant or fraudulent. Researchers know that correlation does not equal causation, and they know that the climate has changed in the past. Many people still take these arguments seriously, though, because they are thrown around and not challenged. We need to challenge the media outlets that have spread dangerous, libelous misinformation regarding climate change for years. We need to challenge them on the level of lawsuits, not on the level of writing letters to the editor.

It is vital to engage with the apathetic and show them why they should care. Apathetic youth are particularly problematic. Why should the government care about the needs of the next generation when most of its members don’t even vote? We have to make the youth vote strong enough that political parties will compete for its support, just like they do with the ethnic vote and the women’s vote. As Canadian comedian and political analyst Rick Mercer said, “If you are between the ages of 18 and 25, and want to scare the hell out of the people who run this country – this time around, do the unexpected: vote.”

When faced with a depressing reality, many will turn away and ignore the problem. However, the only way to prevent the scary stuff from happening is to suck it up and face it. Just because we wasted 20 years of potential action and got ourselves into a bad situation doesn’t mean we should throw up our hands and give up. It’s never too late to act, because this bad situation can always get worse if we let it.

Read Full Post »