Tag: extremes

The truth is molten

Extreme weather events are where the climate change rubber hits the road, and if events over the last month are anything to go by, global warming is currently doing doughnuts and burnouts on tarmac right round the globe. Kevin Trenberth put it rather nicely in an interview with PBS Newshour in the US: “This is a view of the future, so watch out.” John Vidal in The Guardian sums up the situation rather well:

…how much more extreme weather does it take for governments and individuals to act, or for the oil companies to withdraw from the Arctic, or the media to link global warming with the events now being witnessed around the world? Must the sea boil, the Seine run dry, New York flood and the London Olympics be consumed by fire before countries are shocked into taking concerted action?

Damn good question.

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Prat watch #5: Ignorance is bliss

What happens when you deny things? Well, if you deny the reality of global warming, and if you are to be in any way self-consistent, then you have to deny every bit of evidence that it might be happening. Here’s a classic example, drawn from New Zealand’s very own little corner of the climate crank echo chamber, Richard Treadgold’s “Climate Conversation Group” blog. Treadgold concludes a recent post thus:

Once more: let’s stop accepting this palpable nonsense that climate change is responsible for anything.

Climate change means global warming. Global warming has not happened for about 15 years, unless you take a micrometer to the thermometer. And if you have to do that just to detect warming, then it’s hardly dangerous, is it?

Oh – if it didn’t happen, then it didn’t cause anything! No droughts, no wildfires, no floods, no storms. No ice melt.

Look at the bit I’ve emphasised. No warming for 15 years? Tell that to the planet, Richard. Here’s what the World Meteorological Organisation says about the first decade of the 21st century:

…climate change accelerated in 2001-2010, which was the warmest decade ever recorded in all continents of the globe.

No warming for 15 years? After we’ve had the warmest decade ever recorded in all continents of the globe?

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The Bast Effect: summertime in wintertime

Forget the Gore Effect ((The occurrence of cold weather in a place where Al Gore talks about global warming )), Chicago — and much of the eastern half of the continental USA — is now experiencing the Bast Effect — a record March heatwave in the Heartland of climate denial. The figures for this heatwave are truly extraordinary. Here’s Jeff Masters:

For the third consecutive day, Chicago, Illinois hit their warmest temperature on record so early in the year, going back to 1872. The mercury hit 82°F, giving the city its third consecutive day of 80°+ temperatures, smashing the old record by a month. Previously, the earliest Chicago had ever seen three consecutive 80 degree days was back on April 14 – 16, 1976.

Masters quotes the National Weather Service:

Chicago and Rockford have both broken high temperature records 3 days in a row and will likely break record highs for 5 days in a row. There is even the potential they could tie or break record highs for 6 or 7 days in a row depending on how warm temperatures get on Monday and Tuesday. It is extraordinarily rare for climate locations with 100+ year long periods of records to break records day after day after day. At the current pace… it is likely that Chicago and Rockford will not only break… but shatter their current record warmest Marches.

Joe Romm at Climate Progress has a very useful overview of the event, drawing heavily on the views of Masters and the Weather Channel’s Stu Ostro.

Even the most committed US denier can’t fail to notice midsummer weather happening in March, coming on top of a very mild winter. This is exactly the sort of extreme weather event that can drive public opinion in the direction of the need for action. It’s large, widespread and not too damaging (so far), yet undeniable. One can only hope that US politicians notice. And it might be a good idea to invite Bast to give a few talks outside Illinois…

[Badly Drawn Boy]

Hansen: extreme heat the new normal

James Hansen and two fellow-authors have circulated a new paper which they will be submitting for publication, Perceptions of Climate Change: The New Climate Dice. I’m not qualified to comment on its scientific detail beyond reporting it as relatively accessible to the lay person, but there were elements in the discussion with which it concluded that I thought I could dwell on as a member of the general public with whom Hansen is always concerned to communicate.

The paper deals with the increasing frequency of extreme summer heat such as that experienced in the Moscow region in 2010 and Texas in 2011 and reaches the conclusion that we can say with a high degree of confidence that such events were a consequence of global warming. The base period of 1951 to 1980 is chosen against which to compare the changes of the last three decades. The chance of what would have been regarded as “hot” summers during that base period has increased in more recent decades and is now about 80%. Hansen comments that the climate dice are now loaded to the degree that a perceptive person (old enough to remember the climate of 1951 to 1980) should recognise the existence of climate change. I’m old enough. That base period coincides with the first half of my adult life.

Unfortunately my climate memory (or any memory for that matter) has deteriorated with age and I can’t honestly say that I recognise the change. But I can certainly see from the maps and graphs the paper provides that the second half of my adult years has been spent in a global climate significantly changed and continuing to change. It’s a sobering thought, bringing home the magnitude and rapidity of the alteration we have effected.

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Shapes of things (2012 and all that)

‘Tis the silly season, time for journalists with little real news to report to reflect on the year past and make predictions for the year to come. I don’t normally play that game because there are too many interesting things to write about on the climate beat, but this year I’m going to make an exception. Glenn “Climate Show” Williams persuaded me to have a chat with him on his summer Radio Live show — and yes, we did cover the last year, and the prospects for 2012. The audio’s available to stream for the next week from the Radio Live site (select Dec 28th, then the 1-15pm segment — my bit starts after about 5 minutes). You may regard this post as an expanded version of my comments there (and a bit of recap on the last Climate Show of the year).

So: 2011 was the year of extremes, beyond any shadow of doubt. Wherever you looked around the world, there were record-breaking floods, heatwaves and hugely damaging extreme weather events. The USA alone had 14 separate extreme weather events with billion dollar plus damage bills (NOAA puts it at 12 with 2 more to finalise, the World Meteorological Organisation plumps for 14). The year broke no records for global average temperature — 2011 will probably end up as the 10th or 11th warmest year in the long term record — but it will be the warmest ever La Niña year. Here’s a WMO graph to illustrate the point:

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