Katrina caused by global warming?

Here’s an exchange from Question Time back on 21 March:

Jeanette Fitzsimons: When the Prime Minister said that New Zealand needed coal-fired power plants because the weather did not always come to the party, was she meaning the recent droughts in Canterbury and yesterday’s Cyclone Larry in Queensland; and will she be advising her new Minister responsible for Climate Change Issues that changes in the weather mean we should reduce our reliance on fossil fuels and take climate change more seriously?

Rt Hon HELEN CLARK: I would love to see us reduce our reliance on fossil fuels, but frankly, if it is a choice between New Zealanders going without power and having a coal-fired power station to give it to them, I know what I am going to choose.

Hon Dr Michael Cullen: Is there any evidence that periods in New Zealand of low rainfall and lack of wind can be entirely be ascribed to climate change?

Rt Hon HELEN CLARK: No, I would not have thought so.

Putting aside the fact that Dr Cullen’s question missed the point - that catastrophic weather events like Cyclone Larry, not just low rainfall and lack of wind, could already be happening because of global warming - Helen Clark’s response is indicative of the predominant tendency to view climate change as an academic idea, removed from real manifestations like tangible changes to the weather, or as something which might happen in the future, not something that is happening now.

In fact, more and more scientists are beginning to conclude that the extreme weather events we are now seeing so often - witness yesterday’s floods - can be attributed to global warming.

Yesterday, addressing the American Meteorological Society’s 27th Conference on Hurricanes and Tropical Meteorology, Greg Holland, a division director at the US National Center for Atmospheric Research concluded that “The hurricanes we are seeing are indeed a direct result of climate change and it’s no longer something we’ll see in the future, it’s happening now.”

You can’t get much more emphatic than that. The conference will debate Greg Holland’s contention this week, and others will present opposing opinions. So, climate change seems doomed to remain a contentious science for now, but the growing body of scientists prepared to link it to today’s weather events is encouraging - not for the planet maybe, but for getting ordinary people affected by these catastrophic events to start asking questions of their governments about whether more could be done to prevent them.

frog says

9 Responses to “Katrina caused by global warming?”

  1. fastbike Says:

    The GOM (that’s the Gulf of Mexico, not Grumpy Old Man) still has not recovered 100% of oil and gas output after Katrina and co. And there’s just over a month until the start of the next Atlantic hurricane season. Crikey !

    Cummulative production losses in the period since last August are 27% for oil and 20% for NG. And these figures are compared to ANNUAL production. If we get a repeat of the last hurricane season, say hello to $100 crude.

    And on a related note, Allstate insurance is reducing exposure to the high risk East Coast of the US. They’ve pulled out of Florida completely, and are now in the process of pulling out of New York.

    Faced with over $3 billion in claims from the barrage of hurricanes last year, Allstate is going on the defensive by pulling out of of high-risk markets as the industry prepares for increasingly severe hurricanes over the next two decades.

    If you don’t want to believe the scientists, then follow the money. The smart money is on the move, away from the risks of climate change.

  2. uk_kiwi Says:

    I understand Helen’s POV, politicians who tell us bad news don’t generally get elected (see Jimmy Carter.)

    But I also wonder what the alternatives are short term, given that windfarms are unpopular, all our rivers are dammed, geothermal is already being expanded. Mass installs of solar water heating would be a good idea, but difficult to retrofit.

    As long as the coal plant is situated near the demand, it will be fine. Heck we already export coal, there is no difference in CO2 if it gets burned here or elsewhere.

    There are no easy answers in the energy debate, and climate change is seemingly unstoppable.

  3. fastbike Says:

    uk_kiwi

    Even in a densely populated country like the UK, there are many measures to make the economy less carbon intensive and more energy efficient.

    FOE UK has produced a guide that highlights a number of alternative solutions that could generate cleaner energy and help cut energy waste. Some alternatives:

    Insulate homes and offices (homes are responsible for almost a third of carbon dioxide emissions in the UK). The Environmental Change Institute at Oxford University has suggested that emissions from the UK’s housing stock could be reduced by 60 per cent by 2050. According to the Carbon Trust, UK business wastes £1 billion a year in lost energy.
    Almost halve the average carbon dioxide emissions from cars, vans and lorries by requiring, for example, use of hybrid technology in cars. Reduce CO2 emissions by 40 per cent with considerable savings in energy usage.
    Generate 20-30 per cent of current domestic electricity and heat demand through micro-generation technologies in homes, e.g. solar panels, micro-wind turbines, solar water heating, small combined heat and power boilers, biomass heating. 220 TerraWatt Hours (TWh) of heat and electricity could be generated this way by 2030 and 320 TWh by 2050. Current UK heat and electricity demand is around 1,100 TWh
    Generate a quarter of electricity through highly efficient community-sized and larger gas-fired combined heat and power plants. Combined heat and power plants are around 40 per cent more efficient than conventional power plants which waste most of the heat they produce in the electricity generation process. This could produce100 TWh of electricity by 2020 (current electricity demand is 380 TWh).
    Use biomass for 10 per cent of electricity, five per cent of transport fuel, and 5-10 per cent of current heat needs. Growing crops for fuel results in no significant net increase in carbon dioxide as long as the harvested crops are replaced. A sustainable use of biomass could produce 38 TWh for electricity, 25 TWh for transport fuel and 50 TWh for heat. Many such crops could be harvested in the UK & the EU, which could greatly help improve energy security.
    Reduce the need to travel and get people to walk, cycle and use buses and trains more than present. Early research for the Department for Transport shows that if the Government really pushed a package of behavioural change measures including road pricing, liveable cities, use of new technology and improved public transport, then carbon emissions could be cut from 38.6 MtC (the 1990 level) to 34 MtC by 2030.
    Increase the use offshore wind to produce 10 per cent of electricity. By 2020 40 TWh of electricity could be produced by offshore wind. A recent DTI analysis of 30 years of wind speed data across the UK suggested that wind is a very reliable source of energy, is strongest when electricity demand is highest and is a more powerful source of energy in the UK than other countries within Europe.
    etc

    And in NZ, the Greens have just released their Turn Down the Heat proposals.

    Given the alternatives, we have to get started now.

  4. bjchip Says:

    I’d like to see a program that forces insulation improvements and double glazing into the rental housing somehow. The fact that a lot of us are renting and CAN’T do anything about the efficiency of our housing is one of the failings of the way NZ treats its housing market.

    respectfully
    BJ

  5. uk_kiwi Says:

    Fastbike: While the FOE UK proposals are interesting, they also come with a price tag that would make your eyes water. I mean, forcing all cars to be hybrids? Thats going to cost a fortune. I hope FOE is volunteering to pay.

    Many of their ideas are also practically impossible: community gas-fired electricity and heat, well you would have to retro-fit this to millions of Victorian terrace houses somehow? Who’s going to pay for that! And given that gas is so short in Europe and the UK, any new generation capacity is likely to be obsolete within a decade due to gas costs.

    The amount of biomass needed to produce those kinds of numbers would be massive and displace local food crops, and the UK doesn’t have that much arable farmland anyway, so I don’t think thats a solution either.

    In short, the UK has some much tougher choices coming than NZ.

    “I’d like to see a program that forces insulation improvements and double glazing into the rental housing somehow. ”

    I agree, but this is not a guarantee that energy usage will go down. It may just mean that people wear T-shirts instead of jumpers indoors.

    In the end, I the biggest thing that will work is simple price signals. If petrol is $10 a litre, you will get a lot more walking, cycling and trains. If domestic gas costs $200 a month, people will use less gas.

  6. kiore1 Says:

    It seems rather defeatist to say simply that something can’t be done, without doing the sums, and also looking at what the long term cost is of NOT acting (in terms of environmental damage, but also in economic terms) I agree there are difficulties, but they are political not economic. We could quite easily afford the FOE UK measures and fund them by levies on petrol, gas, electiricty and cars. Those using those services will then be paying the full cost of using these goods and services, including cost to the environment. Helen is making a false dichotomy when she sees the choice as either no power or coal. But perhaps she just thinks it will be too hard to get people to cut down on fossil fuels, and that is where the real difficulty lies.

  7. fastbike Says:

    Without getting into a tit-for-tat rebuttal. ;-)

    Hybrid cars - useful technology but no silver bullet - still in it’s infancy. Under our normal technological price/performance experience it would be reasonable to assume production prices to fall. Note the waiting length for a Prius, no serious competition in the market place yet (Honda is a different class - and issues such shortage of component parts etc) and I’d be surprised if it wasn’t one of the most profitable models Toyota have ever produced.

    None of these technologies (hybrids, wind pwer, biofuels, etc) ON ITS OWN will get us out of the hole. A mix is required.

    Yes, I agree the UK has more of a problem than NZ - I have family members with young children there too !! I won’t be surprised to see significant emigration from the UK over the next decade. It has happened before and will happen again.

    Price signals - can be useful but unfortunately often come too late to move the market - instead just causing pain at one end and profiteeering at the other.
    I.e. the pensioner who can’t afford to move or insulate suffers - the oil company is spending no more to produce that $75 barrell of oil but is making a kiliing. Look at the profit figures for the major IOCs, formerly nicknamed the ‘Seven Sisters’ but now shrunk to 5 Anxious Dwarfs. (Thanks to Andrew McKillop for that moniker).

  8. fastbike Says:

    Real Climate covered this conference too. I found the
    following very informative
    .

    Anybody who has followed press reporting on global warming, and particularly on its effects on hurricanes, has surely encountered various contrarian pronouncements by William Gray, of Colorado State University. A meeting paper that Gray provided in advance … begins with a quote from Senator Inhofe calling global warming a hoax perpetrated on the American people, and ends with a quote by a representive of the Society of Petroleum Geologists stating that Crichton’s State of Fear has “the absolute ring of truth.” It is the gaping flaws in the scientific argument sandwiched between these two statements that are our major concern.

    The contrarian denialists are still out there, running flat out. This is an article well worth taking the time to read so you can trot out the main points next time a climate change denier makes a pronouncement.

  9. icehawk Says:

    “climate change seems doomed to remain a contentious science for now”

    All science is contentious. It works partly by co-operation and consensus, and partly by skepticism and contention. There will always be a few scientists in any field holding extremist positions and claiming that the mainstream view is wrong. For science that’s usually a good thing: it means that alternative lines of research are explored and that alternative positions are considered. Having some critics from outside the mainstream acting as critics helps the mainstream get things right.

    It can get a bit bizarre when you get the few conservatives who are way outside the mainstream. There was a US professors of geology publishing textbooks right into the 1970s that were simply denying the existence of continental drift. How could something as heavy as a continent float around, for god’s sake? The entire field had moved on - but not them.

    The problem is when outsiders look in and assume that all views within a field are equal. Imagine a reporter interviewing a geology professor in the 1970s who denied the existence of continental drift, and writing a story claiming that continental drift was all a conspiracy of mindless consensus by geophysicists trying to get funding. How absurd. Yet how similar to claims we see today regards global warming.

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