Tuesday, August 7, 2018
Random climate science: Hot seas, marine debris, changing forests and, of course, goats
And on Aug. 1, 2018, they measured the highest temperature in all that time: 78.6 degrees. And summer's not even over yet.
The same day, a
half-mile offshore they measured 79.7 degrees, second highest at that location after a 2015 El
Nino year measurement.
Yeah, that's just one location, and you can get isolated
peak temperatures, but large scale temperature data continue to move in one
direction. The image at upper right represents global land and sea temperatures from
1880 to 2015. It comes from the National Climate Data Center.
There are still plenty of skeptics out there, but the
science seems clear.
We all know about rising sea levels, California wildfires,
increasing droughts, acidification of the oceans and so on. But what are some
of the likely impacts that we don't hear much about?
For the Hawaiian and Pacific Islands, a warming climate has
other kinds of implications. Marine debris, for example, can not only be a
nuisance, an entanglement threat to turtles, an ingestion threat to seabirds,
but a bunch of other things.
Climate change can alter storm frequency, change current
patterns, and move plastic debris into new parts of the sea and the coast,
according to a study in the journal Aquatic Invasions.
"Climate change may also increase the frequency and
magnitude of storm activity capable of washing the immense amounts of plastic
material now poised on the edges of the world’s coastlines into the sea,"
the authors write.
Have a child interested in medical school? Suggest a career
in treating parasitic worms. There's evidence that a warming climate will
increase the populations and virulence in a range of nasty bugs that like to
bore into human tissue.
In the PLOS journal Neglected
Tropical Diseases, there's this paper: " Global 'worming': Climate
change and its projected general impact on human helminth infections."
Not every nasty parasite will increase but many will, and
some of those will be able to move into areas where they now don’t exist. And
here's a word to get familiar with: ancylostomiasis. It is caused by a
hookworm and can cause anemia in humans. Here's another: ascariasis, a disease
caused by a roundworm. Both are expected to thrive in a warming climate.
There are a lot of folks in the Midwest who have felt secure
that climate change will impact them minimally, since, after all, they aren't
going to be impacted by rising seas or tropical storm systems. But there's
increasing evidence that they can expect disruptions, too.
The Indiana Climate Change Impacts Assessment suggests that
the growing season will be longer, but that with more spring floods and summer
drought, the state might not be able to take advantage of it.
And not just Indiana.
Northern European forests will see big
species changes, with declines in species like silver fir, beech, common ash
and common oak, and a better habitat for alien species like the Douglas fir,
red oak and black locust. With the change in species will come a dramatic
change in the natural species that rely on those forests, said a paper in the
journal Global Change Biology called "How
much does climate change threaten European forest tree species distributions?"
Should you get used to goat-milk ice cream? One research paper suggests that in a more extreme environment, goats present the best option for
milk and meat.
"Goats have numerous advantages that enable them to
maintain their production under extreme climate conditions. Principally, goats
have higher capacity than other farm raised ruminants to effectively convert
some feed sources into milk and meat," write authors Nazan Koluman Darcana
and Nissim Silanikoveb in the journal Small Ruminant Research.
Additionally, they produce less methane than cattle, they
write.
©Jan TenBruggencate 2018
Posted by Jan T at 2:29 PM
Labels: Botany, Climate Change, Fisheries, Government, Invasive Species, Marine Debris, Marine Issues, Oceanography, Pollution, Sustainability
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