No 747 Posted by fw, May 15, 2013
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No 746 Posted by fw, May 14, 2013
“…if we continue to burn fossil fuels and elevate greenhouse gas concentrations, the cost to society is going to be far greater than any cost of action. And the president has talked a good game in recent months. On the other hand, there are some—to those who read the tea leaves, there appear to be some signals that suggest that he may approve the Keystone XL pipeline. And if he were to do that, in my view, that would be a big mistake. Like I said before, it would be moving us in exactly the opposite direction of where we need to be moving.” —Michael Mann
Climate scientist Michael Mann, distinguished professor of meteorology at Penn State University and author of the recent book, The Hockey Stick and the Climate Wars: Dispatches from the Front Lines talks to Amy Goodman on Democracy Now about the significance of crossing the 400 ppm threshold for the first time in human history.
Click on the following linked title to watch the interview and access the complete transcript. Or scroll down to watch an embedded copy of the 12-minute interview and read an abridged version of the transcript with added subheadings.
Scientists are warning the planet has now reached a grim climate milestone not seen for two or three million years. The National Oceanic and Atmospheric Administration says the amount of heat-trapping carbon dioxide in the atmosphere has topped 400 parts per million. The 400 ppm threshold has been an important marker in U.N. climate change negotiations, widely recognized as a dangerous level that could drastically worsen human-caused global warming. We speak to leading climate scientist Michael Mann, distinguished professor of meteorology at Penn State University and author of the recent book, “The Hockey Stick and the Climate Wars: Dispatches from the Front Lines.” Mann warns, “We have to go several million years back in time to find a point in Earth’s history where CO2 was as high as it is now. … If we continue to burn fossil fuels at accelerating rates, if we continue with business as usual, we will cross the 450 parts per million limit in a matter of maybe a couple of decades. With that amount of CO2 in the atmosphere, we commit to what could truly be described as dangerous and irreversible changes in our climate.”
[Michael Mann is the sole source for all following passages]
Meaning and significance of 400 parts per million (ppm)
So, this number, 400 parts per million, what does it mean? It’s the number of molecules of CO2 for every million molecules of air; 400 of them are now CO2. Just two centuries ago, that number was only 280 parts per million. So if we continue to add carbon to the atmosphere at current rates, we’ll reach a doubling of the pre-industrial levels of CO2 within the next few decades.
Now, 400, what does that round number, 400, mean? Well, what it means is that, as you alluded to, we have to go several million years back in time to find a point in earth’s history where CO2 was as high as it is now. And, of course, we’re just blowing through this 400 ppm limit. If we continue to burn fossil fuels at accelerating rates, if we continue with business as usual, we will cross the 450 parts per million limit in a matter of maybe a couple decades. We believe that with that amount of CO2 in the atmosphere, we commit to what can truly be described as dangerous and irreversible changes in our climate.
Visible warning signs of the growing perilous impact of climate change
So, what we are already witnessing, in fact, the effects of climate change. If we look at the past year here in the U.S., last summer, the record heat, the record drought, the record wildfire that destroyed large forest areas in Colorado, New Mexico. We saw, you know, tremendous damage to our crops in the breadbasket of the country. We saw Arctic sea ice diminish to the lowest level we’ve ever seen, and it’s on a trajectory where there will be no ice in the Arctic at the end of the summer in perhaps a matter of 10 years or so. We also saw the devastation of Superstorm Sandy. Now, we can’t say that Hurricane Sandy was caused by climate change, but many of its characteristics are precisely the kinds of characteristics that we predict tropical storms and hurricanes will have if we continue to warm the planet. We will see more destructive tropical storms. We’ll see more flooding. We’ll see more drought. And that’s just the tip of the iceberg, because, remember, we’ve only just crossed 400 now. We will reach 450 ppm in a matter of a couple decades if we continue with business as usual.
The only sure way to stop the rise in CO2 levels is to transition from fossil fuels
Well, ultimately, you know, we have to find a way to move away from our addiction to fossil fuels. As former President George W. Bush once put it, we’re addicted to fossil fuels. We need to find a way to transition away from those means of obtaining energy, fossil fuel energy, that we know is degrading the climate and degrading the planet. We have to find a way to level the playing field so that the marketplace will allow renewable energy sources to compete with fossil fuel energy. We’re currently providing subsidies to fossil fuels, the very sources of energy that are degrading the climate, and not providing the appropriate incentives to developing alternative energy.
Keystone XL “represents what’s wrong about our current prioritization”
But that aside, you know, the larger picture here, the Keystone XL pipeline, developing these tar sand oils in Canada, there have been some calculations that argue that, you know, even if we develop the full petroleum reserves from the tar sands, that we wouldn’t add to our global carbon emissions nearly as much as if we continue, for example, to burn coal. There’s a lot more coal available to burn than there is these tar sand oils.
On the other hand, I think it represents what’s wrong about our current prioritization. If we are to invest heavily in the infrastructure so we’re subsidizing efforts to get at this increasingly difficult reservoir of fossil fuel energy, if we are to incentivize that effort through certain government subsidies, then we’re going in exactly the opposite direction of where we need to be going. We’re actually simply developing more and more of the available fossil fuel reserves at a time when we have to be ramping them down. We need to be bringing our global carbon emissions to a peak within the next few years, and we need to ramp them down dramatically in the decades ahead, if we are going to avoid crossing that next sobering milestone, 450 parts per million in the atmosphere.
“We’re going in the wrong direction”
And so, it’s really not so much precisely how much carbon we’ll add to the atmosphere by building the Keystone XL pipeline as it is it’s an example of how we’re going the wrong direction. We need to follow what the rest of the world is doing. If you look to India and China, the developing world, they’re investing far more in renewable energy than we are here in the U.S. And this is in fact a matter of global competitiveness. We in the U.S. are falling behind because we’re letting the rest of the world move ahead and recognize that the future of our global economy is going to be in renewable energy.
If Obama approves KXL, “that would be a big mistake”
You know, the president has talked a good game in the past few months since he won re-election. In his State of the Union address, I think he outlined very clearly the threat of continuing to worsen the climate change problem through our burning of fossil fuels. He acknowledged the threat that it represents to us, whether you’re talking about human health, food resources, water resources, national security. Across the board, if we continue to burn fossil fuels and elevate greenhouse gas concentrations, the cost to society is going to be far greater than any cost of action. And the president has talked a good game in recent months. On the other hand, there are some—to those who read the tea-leaves, there appear to be some signals that suggest that he may approve the Keystone XL pipeline. And if he were to do that, in my view, that would be a big mistake. Like I said before, it would be moving us in exactly the opposite direction of where we need to be moving.
There will always be some degree of predictive uncertainty in science. Skepticism in climate science is a good thing, but outright denial fed by bald ignorance is not
As a climate scientist who published an iconic graph called “the hockey stick,” which shows how unusual recent warming is, I found myself in the crosshairs of the efforts to discredit the science of climate change, many of those efforts funded by vested interests who don’t want to see us move away from our addiction to fossil fuels. And so I recount my experiences in the book.
But I also talked about the larger issues involved. You know, for example, you alluded to the word “skeptic.” Well, many of those who simply deny that climate change exists, we don’t call them skeptics, because that’s not skepticism. That’s just denial or contrarianism. Now, skepticism is a good thing in science, but it means looking at all sides of an issue. And so, when you talk about the uncertainties, there are uncertainties in, for example, the precise projections of how much sea-level rise we will see in the next century.
But uncertainty based on statistical analysis in climate science measurements is not a valid reason for inaction
But it turns out those uncertainties are not a reason for inaction, for the same reason that we purchase fire insurance, not because we think our houses are going to burn down, but because we need to hedge against that potentially catastrophic, low-probability outcome. Mitigating climate change is in fact a planetary insurance policy. And so, there’s room for discussion of uncertainty, and there’s room for a good-faith, worthy debate about what to do about this problem. There are valid points of view.
No 745 Posted by fw, May 11, 2013
“As people around the world grapple with consequences of the climate crisis, their governments should and must use every tool available to reduce dangerous carbon pollution and create new clean energy jobs…. To avoid climate chaos, the WTO needs to get out of the way of innovative and successful climate solutions and job creators.” —Ilana Solomon, Sierra Club trade representative
A World Trade Organization (WTO) final ruling against Ontario’s successful renewable energy incentives program, which has reduced carbon emissions and created clean energy jobs, underscores the threat the WTO poses to a clean energy future, Public Citizen and Sierra Club said today.
In November 2012, the WTO ruled that Ontario’s incentives program for renewable energy companies at home – or “feed-in tariff” program – violates WTO rules that forbid treating local or domestic firms and products differently from foreign firms and products. On Monday, the WTO struck down Canada’s appeal of that initial ruling in a decision that went even further to condemn the green jobs program as a violation of WTO rules.
“By ordering the rollback of a successful program that is reducing carbon pollution and creating green jobs after recently sacking three popular U.S. consumer protection policies, the WTO is destroying whatever shred of legitimacy it still had after years of imposing its anti-consumer, anti-environment dictates,” said Lori Wallach, director of Public Citizen’s Global Trade Watch. “Just like the WTO rulings ordering the U.S. to gut popular laws on country-of-origin meat labels, dolphin-safe tuna labels and limits on candy-flavored cigarettes marketed to kids, this latest attack against an initiative promoting renewable energy, localization and green job creation is simply unacceptable.”
Ontario’s renewable energy incentives program was established under the Green Energy and Green Economy Act of 2009. It increases incentives to develop clean and safe renewable energy by guaranteeing that the provincial public electricity utility, Ontario Power Authority, will pay a preferential price for 20 years to companies for the wind, solar and other clean energies they produce. Although the program is new, it already has achieved significant success, including contracts for an estimated 4,600 megawatts worth of clean energy and the creation of more than 20,000 jobs in just two years.
“As people around the world grapple with consequences of the climate crisis, their governments should and must use every tool available to reduce dangerous carbon pollution and create new clean energy jobs,” said Ilana Solomon, Sierra Club trade representative. “To avoid climate chaos, the WTO needs to get out of the way of innovative and successful climate solutions and job creators.”
The Sierra Club and Public Citizen support calls of Canadian allies, including the Council of Canadians, to keep Ontario’s renewable energy incentives program in place.
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