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In a surprise to no one, descendants of plants that survived 350 million years of climate extremes, volcanoes, meteor impacts, mass extinction events and ice ages seem able to cope with moderate modern weather. Not only that, places where the weather varied a lot in the 1960s are still like that, and the plants that liked those conditions still like those conditions. I mean, really, give me your money.
Does this mean we can protect forests of the future by creating climate variability now?
Exposure to past temperature variability may help forests cope with climate change
Rachel Harper Institute of Physics
Close relatives of Ginkgo Biloba trees have been around for nearly 200 million years. | Photo Jean-Pol Grandmont |
A new study out today in the first issue of Environmental Research: Ecology assessed effects of past and current climate variability on global forest productivity. The work highlights sensitive regions where forests may be most at risk as the planet warms and temperatures become more extreme. The framework can help set conservation priorities, support forest adaptation efforts, and improve carbon accounting.
Lead author Winslow Hansen, a forest ecologist at Cary Institute of […]
Two different models predict two totally different futures. On the left, catastrophic extinction. On the right, happy bats. Click to enlarge
Yesterday a UN supercommittee of 145 scientists from 50 countries declared that one million species are set for extinction. The same day, ten other scientists published a paper pointing out that most modelers forget to allow for genetic variation and thus overestimate the extinction rate. (It’s like they’re modelling the World of Clones – take one small study, pretend they’re all the same — extrapolate globally.) Have a look at the big difference in model outcomes in figure 1 (right).
As I keep saying, 500 million years of brutal climate change means almost every species carries around an industrial tool-kit of handy genetic tricks. Matz et al estimated corals already have the genes to survived another 250 years of projected IPCC catastrophe (in the unlikely event that it happens). Liew et al showed corals even have epigenetic tricks as well as genetics ones. Another group showed when corals are heated something like 74 different genes are activated — often genes that we don’t even know what they’re there for.
My favourite all time Global Adaptability Prize goes to […]
Of all the homo subtypes only humans survived. We began to colonize the entire planet sometime between 300,000 and 60,000 years ago.
Scientists Have a Bold New Hypothesis For Why We’re The Only Humans Left on Earth
Depending on who you ask, we’ve shared the Homo genus with six other species across the millennia. And those are just the ones we know about. One by one they’ve all vanished. Around 30,000 years ago, the last of the Neanderthals disappeared…– Science Alert
Homo erectus spread from Spain to Indonesia, but stuck to forest and grassland. Neanderthals specialized in cold northern realms and survived hundreds of thousands of years of ghastly ice ages. They coped better than we do with cold but we are the ones still living in Siberia. Tell the world: we’re adaptable!
Maybe it’s time to stop trying to adapt the planet to us, and get back to adapting us to the planet instead?
Some of the ecological challenges faced by Pleistocene H. sapiens. a. The Thar Desert of northwest India at the site of Katoati. Credit: James Blinkhorn. b. The highlands of Lesotho at the site of Sehonghong. Credit: Brian A. Stewart. c. […]
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A new paper finds that there is already enough genetic variety spread across the Great Barrier Reef to adapt to the imagined “unprecedented” warming coming in the next two centuries. We don’t need to rely on random mutations or consider fantasy solutions of man-made oceanic sunscreens, mass sunshades, or giant reef fans. Corals already have a major immigration program running pretty effectively to juggle 200 million years of genetic material and then spread the successes far and wide. Meddling humans can help things (maybe) by moving a few bits of coral around. That’s it. Cancel the scare please.
Skeptics have been saying this for years — who needs a computer model to predict that the Barrier Reef will adapt? How bad could global warming be? The global oceans span a 32C range and corals prefer the hottest five degrees of that. Indeed, there is a five degree temperature range from one end of the Great Barrier Reef to the other, and corals are clearly, obviously pretty happy about it. Meanwhile, the atmosphere is warming at a mere tenth of a degree per decade. Then there is the well known phenomenon that corals spawn in vast clouds that are […]
The Green Blob is going to have to get rid of satellites. Real data is so inconvenient.
For years many people called scientists have assumed, like any smart 5 year old would, that islands are fixed blobs of rock and sand that just sit there and sink as oceans rise. Now satellite images show that three quarters of the islands in Tuvalu are growing rather than shrinking.
Total land area is up 2.9%. Total government funded scientists who predicted reality, down 97%.
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Since our emissions helped create nearly a square kilometer of free real estate in Tuvalu, it seems only fair that they return any climate funds, and pay a royalty. 😉
The whole of Tuvalu is 26km2 and about 10,600 people live there. Total GDP is $32 million. It’s a cheap marketing tool. In May last year, despite Tuvalu being used as an advertising posterchild for climate change for years, it had not received funding from the Green Climate Fund. In August 2017 UNDP finally promised $38 million. That’s theoretically an extra income equivalent to 20% of their GDP for the next seven years. No wonder these islanders are keen to talk “climate change”.
Scientists who have […]
You will never guess, but salmon that survived the hot Holocene period, and the even hotter Eemian, will probably be OK in a slightly warmer world. Expert researchers found this surprising.
Given the broad spread of Salmon in the Northern Hemisphere, and their past survival through every single interglacial warm period of the Pleistocene, I would have thought that they could cope with quite a bit of climate change. As it turns out, they cope so well, that even salmon eggs that come from a 12C environment can be raised in an environment a whopping 8C warmer, and they were not noticeably any worse off.
Part of the concern with salmon was the spawning and eggs, and the problem with getting the salmon to shift their maternity wards and childcare arrangements (which they seem very attached too). But presumably those breeding grounds have varied before in temperature, and salmon didn’t die out, so — at least with this problem — nature has it figured out.
Map: Salmon and Climate Change, Fish in hot water, Red List.
Atlantic salmon also show capacity to adapt to warmer waters
Populations of Atlantic salmon have a surprisingly good capacity to adjust […]
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JoNova A science presenter, writer, speaker & former TV host; author of The Skeptic's Handbook (over 200,000 copies distributed & available in 15 languages).
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