Post by Lynn McGuire
On Wednesday, November 28, 2018 at 4:57:33 PM UTC-5, Jibini Kula
Post by Jibini Kula Tumbili Kujisalimisha Post by Lynn McGuire
"Researchers say it would be cheap and doable to dim the sun to
curb global warming"
I have been advocating space umbrellas for quite a while now.
Plus they could be used as a weapon. If your neighbor state
bothers you, turn off their sunshine.
You should read what you post links to.
"Wagner himself in a February 2018 essay in the Wall Street Journal
coauthored with a Harvard economics professor said, “Seriously
addressing climate change means cutting carbon emissions and,
ultimately, reducing the carbon already in the atmosphere. There’s no
way around it.”"
(Wagner is one of the authors of the paper.)
You really are becoming Shawn Wilson, dude.
(Also, neither author appears to be within his field when talking
about climatology. Wagner is an engineer, and is talking strictly
about the technical feasibility of "space umbrellas," not the
advisability - a point Wagner himself makes in the article.)
Rising CO2 has other negative effects besides acting as a greenhouse gas. It
is a source of ocean acidification, which is contributing to the collapse of
ocean ecosystems as the formation of carbonate shells in everything from
plankton to coral reefs becomes more difficult.
How did the oceans survive when the CO2 hit well over 1,000 ppm many
millions of years ago ?
Really, Lynn. He didn't remotely say that the oceans "would not
survive". A lot of damage can be done to the oceans - and to us and
that economy you are so worried about - without making ocean life
extinct. Some creatures already live in highly acidic waters and will
spread. You probably won't want to eat them, though.
Evolution will allow ocean life to adapt to a slow change from 300ppm
to even 2000 ppm. But we are changing ocean PH rapidly.
And a rapid change will cause problems. The closest thing to a
natural rise in CO2 as fast as the current caused a rather large
number of extinctions. It wasn't one of the major extinction events,
but then, Eocene oceans were not also filled with plastic. (Any John
Wyndham fan should know that a really great disaster is caused when we
do two stupid things, not just one. Or aliens invade.)
This was the Paleocene-Eocene thermal maximum, where carbon was added
to the atmosphere at about 2-5% of the current rate on average.
The oceans bounced back quite rapidly in geological terms and probably
will again. A disaster lasting a mere century or ten we might not even
notice in the geologic record. But we would certainly notice it in
real time. Small consolation when fish stocks collapse by 2100 to
know that they'll be booming again in 2600.
So ocean acidification is real, it is a problem, we are causing it,
and solar shades won't help. Got any solar pepto bismol?
read the book.
STOP dumping trash in the ocean.