As
lawmakers in Washington continue to ignore the most pressing issue facing our
planet today - climate change - we are about to pass a very disturbing
environmental milestone.
The CO2
levels at the Mauna Loa Observatory in Hawaii will likely soon reach 400 ppm,
which could spell further disaster for our planet.
Named
after Charles Keeling, who started measuring CO2 air concentrations in 1858,
the Keeling Curve measures the concentration of CO2 in the air in parts per million.
Since
measurements started at Mauna Loa in 1958, there has been a steady increase in
CO2 concentration.
In
fact, since 1960, CO2 concentration at Mauna Loa has increased by almost 28%.
Thanks
to our society’s toxic addiction to fossil fuels, unprecedented levels of CO2
are being pumped into our environment each and every day.
But why
have CO2 concentrations increased so much over the past few decades?
Part of
it has to do with increased industrialization and reliance on dirty fossil
fuels, but part of it also has to do with the world’s oceans.
According
to Richard Bellerby, Research Scientist at the Norwegian Institute for Water
Research, the oceans have “been performing a huge climate service over the last
200 years.”
That’s
because oceans have the ability to absorb CO2, which prevents it from escaping
into the atmosphere and hastening the process of climate change.
In
fact, the world’s oceans, especially the coldest waters, have absorbed 50
percent of the CO2 that we have emitted, and continue to take up 25 percent of
the CO2 that we produce.
But, we,
as a global community, have abused the oceans’ ability to absorb CO2, and now
the oceans and the ecosystems within them are paying the price.
As the
world’s oceans absorb more and more CO2, they become more and more acidic, and,
according to a new study released yesterday by the Norwegian Institute for
Water Research at the International Conference on Arctic Ocean Acidification,
the rapid acidification of the Arctic Ocean has pushed us beyond “critical
thresholds,” and it’s likely that widespread impacts will be felt for “tens of
thousands of years” even if we stopped
all carbon emissions today.
Dubbed
“climate change’s evil twin”, acidification of ocean surface waters has
increased by around 30 percent over the last 200 years, with the highest levels
of acidification occurring in the Arctic and the rest of world’s coldest
waters.
Richard
Bellerby, the chief scientist on the report, said that, “Arctic ocean
acidification is happening at a faster rate than found in other global regions.
This is because climate change such as warming and freshening of the oceans is
acting in tandem with the enormous oceanic uptake of C02.”
And
Bellerby told BBC News that “continued rapid change is a certainty.”
Another
researcher on the study, Sam Dupont of the University of Gothenburg, told the
conference that, “something really unique is happening. This is the first time
that we as humans are changing the whole planet; we are actually acidifying the
whole ocean today.”
According
to the study, it’s quite possible that, within a few decades, the world’s
oceans will be two times more acidic, and the situation could be even worse in
the Arctic.
So what
are the impacts so ocean acidification?
Well,
to start, the oceans are able to absorb less CO2, which means more of it enters
our atmosphere and helps to hasten the processes of global warming and climate
change.
But
more importantly, ocean acidification can lead to mass ocean species
extinction.
One
example of a possible species extinction that the scientists at the conference
gave was of the brittle star.
When
exposed to the ocean acidification conditions that can be expected in the
decades to come, the eggs of the brittle star died within days.
If the
brittle star dies off, than the species that feed on it could die off as well
and there would be a massive chain reaction of oceans species extinctions.
And if
the ocean dies, we die.
It’s
that simple.
The
bottom-line here is that our toxic addiction to fossil fuels rooted millions of
years in the past is not only polluting our skies and wreaking havoc on our
climate, it’s also destroying our oceans and the species in them.
It’s
time to ditch the fossil fuels, make the switch to cleaner and greener forms of
energy, and save the world’s oceans, before they die and we go with them.
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