Is Our Infrastructure Ready For Rising Temperatures?
Hugh Pickens writes "Megan Garber writes that last weekend, a US Airways flight taxiing for takeoff from Washington's Reagan National Airport got stuck on the tarmac for three hours because the tarmac had softened from the heat, and the plane had created — and then sunk into — a groove from which it couldn't, at first, be removed. So what makes an asphalt tarmac, the foundation of our mighty air network, turn to sponge? The answer is that our most common airport surface might not be fully suited to its new, excessively heated environment. One of asphalt's main selling points is precisely the fact that, because of its pitchy components, it's not quite solid: It's 'viscoelastic,' which makes it an ideal surface for the airport environment. As a solid, asphalt is sturdy; as a substance that can be made from — and transitioned back to — liquid, it's relatively easy to work with. And, crucially, it makes for runway repair work that is relatively efficient. But those selling points can also be asphalt's Achilles heel. Viscoelasticity means that the asphalt is always capable of liquefying. The problem, for National Airport's tarmac and the passengers who were stuck on it, was that this weekend's 100+-degree temperatures were a little less room temperature-like than they'd normally be, making the asphalt a little less solid that it would normally be. 'As ironic and as funny as the imgur seen round the world is, it may also be a hint at what's in store for us in a future of weirding weather. An aircraft sinking augurs the new challenges we'll face as temperatures keep rising.'"
Lots of bus stops where buses are expected to sit for a while are paved with concrete because of this problem. When it's really hot out, buses sink into asphalt.
Our infrastructure was built 40 years ago and had a 25 year life expectancy. Every day that things dont simply fall apart is a blessing. Since apparently putting people to work rebuilding and improving things would be socialsim, so I guess there's nothing we can do about it.
"Have you ever thought about just turning off the TV, sitting down with your kids, and hitting them?"
This is news to us in Dallas. Our international airport has been fine for many, many days of 105+ temperatures.
Clearly this is a case of poor engineering and substandard materials, not 'hot environment destroying asphalt'.
If sharing a song makes you a pirate, what do I have to share to be a ninja?
World temperatures increased by a fraction of a degree but here we go, now airports are melting because of it. What an idiot conclusion telling me a lot of the mental state of the author.
In reality, the aircraft has been in the same spot for far too long. Additionally the consistency of the tarmac material might be sub-standard causing the melting point to be lower. I have seen roads here in New Zealand that had substandard tarmac on them turning to liquid in the hot sun. And New Zealand average temperate is actually dropping over the last decade.
Translation... If the temperatures go up in an area, its global warming. If the temperatures go down in an area, its global warming. If the temperatures stay the same in an area, its global warming.
In other words, he is saying no matter what happens, weather wise, that is bad it is global warming and would not have happened if you just paid the government money for the CO2 that you create.
Actually, "global warming" just means more heat in the atmosphere and oceans, and more thermal energy means more stuff will happen.
It does *not* mean that every place will be warmer than before by the same amount. If melting ice from Greenland shuts down the Gulf Stream, northwest Europe will suffer horribly - from the cold.
OTOH, a given heat wave doesn't prove global warming any more than a given cold snap disproves it. What matters is the trend in the average... you know, those boring record-keeping and analysis things that scientists have to do.
For an amateur to get a rough idea without having to consult world-wide records collected over centuries, just count how many record daily highs and record daily lows you get over a long time span, like a year, and look at the ratio at the end. Most places - but not all - have been breaking many more record highs than record lows in recent years. And that trend was noticed before the current heat wave began.
Sheesh, evil *and* a jerk. -- Jade
but it means making it a priority higher than building an embassy in Iraq bigger than the Vatican.
Heck, we can feed everybody in the world who doesn't have a secure supply of food for 1/10th the US military budget. But when was the last time Starvin Marvin donated generously to a PAC, eh?
My God, it's Full of Source!
OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
I highly doubt in 25 years the average climate in your region has changes from highs of 80 to highs of 95-99. That would be a cataclysmically drastic climate shift. Even the most alarmist of IPCC scientists is looking at global warming on the scale of 2-3 degrees in 40-50 years. I really wish people would stop blaming hot days on global warming, it just makes us all look stupid. Keep this in mind the next time you have an unseasonably cold day :P
The 2-3 degrees increase is for the average global temperature. The sorts of changes of local seasonal high temperatures have already been seen in the 2003 and 2011 heat waves in Europe.
And while it is difficult to blame particular weather events on climate change it is clear that the last decade of very extreme outlier weather events is attributable to climate change. http://www.newscientist.com/article/dn22037-climate-change-boosted-odds-of-texas-drought.html
-- QED