Category Archives: Global Warming

Do I Have a Date With Irma?

Looks like Hurricane Irma might (but also might not) be coming to Miami next Friday or next weekend.

The thing about hurricanes is that, unlike most other natural disasters, you usually have a lot of warning before they hit–and of those warnings, a significant fraction turn out to be false alarms. (False alarms in the sense that the hurricane dies out, goes out to sea, or goes and hits someone else.) The National Hurricane Center does a great job of telling the public what we know, and don’t know, about strike probabilities. But even so, during most late summers and early Fall, we here in Miami usually have a number of hurricane alerts of varying degrees of alarm. Irma sounds like it would be a strong — maybe even very strong — hurricane by the time it makes landfall somewhere, but there are many variables, not least the possibility that it goes over Cuba. That would be very bad for Cuba, but could be good for Miami in that storms going over land tend to weaken while storms going over warm water tend to strengthen.

It used to be that storms (potentially) coming meant that I had to dig out the ugly, sharp-edged, metal hurricane shutters, and then decide when to put them up. Put them up too early and you can sit in the dark for days as happened once when a hurricane stalled just a little bit offshore and spent days deciding where to go. Wait too long and you end up putting them up in the rain as the advance bands of the storm start roiling the weather.

But that’s history: several years ago we did a big renovation, and as part of that we replaced all the windows with hurricane glass, which is terrific stuff. Allegedly you could throw a brick at one of the windows and it wouldn’t shatter, although I have not put it to the test. In any case, the glass changes the whole hurricane experience: instead of huddling in the dark wondering what is going on out there, you can see it. And when the power goes out, as it inevitably does since FP&L refuses to bury our power lines, you at least have natural light to live by during the day.

So now the question becomes whether/when to lay in some extra water and fill up some gas containers to be able to run the little generator (to keep stuff in the fridge from spoiling), and whether it makes any sense to buy any other hurricane supplies given we could surely live a few days off the cans of beans and soup and other canned stuff in our cupboards. There probably isn’t much reason to buy canned spam or other foods which we’d otherwise never eat, but it’s an effort to look at those photos and do nothing.

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Corporate Social Responsibility

Every day Tiffany & Co runs an ad at the top of page three of the New York Times. For as long as I can remember the ad has been for overpriced baubles, interspersed with the occasional holiday message. Today, however, the ad looked like this:

Tiffany Supports Paris Agreement

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Drat

Slashdot has an excited item about a new catalyst that turns CO2 dissolved in water into ethanol. CO2 To Ethanol In One Step With Cheap Catalyst Sounds great, right?

Not so fast: if I understand it (corrections welcomed!) the paper itself warns it still takes too much energy to be worthwhile:

We report an electrocatalyst which operates at room temperature and in water for the electroreduction of dissolved CO2 with high selectivity for ethanol. The overpotential (which might be lowered with the proper electrolyte, and by separating the hydrogen production to another catalyst) probably precludes economic viability for this catalyst, but the high selectivity for a 12-electron reaction suggests that nanostructured surfaces with multiple reactive sites in close proximity can yield novel reaction mechanisms. This suggests that the synergistic effect from interactions between Cu and CNS presents a novel strategy for designing highly selective electrocatalysts.

Guess we haven’t solved global warming yet.

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Doubt This

Warming since 1850Maps showing how much the planet has warmed every year since 1850. View at full size (10 MB file).  Created by Ed Hawkins; spotted via Eye on Miami.

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Here We Go Again

5-day cone

It’s supposed to be a busy hurricane season this year. This particular storm is not organized (yet?), and the National Weather Service is being cagey as to whether and when it might become a serious(ish) storm:

Interests in the northwestern Bahamas and Florida should monitor the progress of this disturbance since it is increasing likely that some impacts, at a minimum heavy rains and gusty winds, will occur beginning this weekend. * Formation chance through 48 hours…medium…50 percent * Formation chance through 5 days…high…80 percent

My rule of thumb is that a tropical wave I don’t drive anywhere, but don’t take in the outdoor furniture. Tropical Storm, I take in the furniture. Worse than that, it is time to stock up on hurricane supplies and gas for the generator. Historically, category 1 storms can cause of damage to trees and power lines but our houses are hardened. I can’t think of a Category 2 in recent years, but in theory the area is hardened for those too. Worse than that, time to worry, although my house was rennovated a few years ago, and now is supposed to be able to withstand a Category 3 at least, and maybe more.

Hurricane Andrew was a Category 4 and it was devastating to the community. The biggest damage was caused by tornadoes spun off the hurricane. Unlike in the Midwest, there’s really no way to see them coming due to the giant storm around them. And of course we don’t have basements to hide in either.

A new complication this year is that big storms, even the less destructive ones, leave big pools of standing water behind them. Mosquitoes love those…which means more Zika….

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I Loved It

French promo: Winter Is Not Coming: Season 6 Teaser.

Great work by Greenpeace.

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