Triona McGrath: How pollution is changing the ocean's chemistry
Triona McGrath: Bagaimana polusi mengubah sifat kimia lautan
Triona McGrath researches how the oceans are changing due to human activities. Full bio
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the oceans are in our daily lives?
penting laut bagi kehidupan kita?
berasal dari laut.
and medicine and food
pekerjaan, obat, dan makanan
to feed the entire world population.
seluruh populasi dunia.
that the oceans were so vast
by human activities.
oleh aktivitas manusia.
about a serious reality
tentang realita serius
called ocean acidification,
asidifikasi laut (pengasaman),
perubahan iklim.
25 percent of all of the carbon dioxide
25% total karbondioksida
provided by the oceans
diberikan laut
is one of the greenhouse gases
gas rumah kaca
more and more and more
ke laut
our ocean chemistry.
secara kimiawi.
di air laut,
of chemical reactions.
the details of the chemistry for today.
secara kimiawi dengan detail
carbon dioxide enters the ocean,
yang memasuki laut,
is an increase in ocean acidity.
is called ocean acidification.
alongside climate change.
perubahan iklim.
ocean acidification for over two decades.
laut selama dua dekade.
time series in Hawaii,
waktu penting di Hawaii
concentrations of carbon dioxide,
stabil dari konsentrasi karbondioksida
of human activities.
aktivitas manusia.
concentrations of carbon dioxide
konsentrasi karbondioksida
in the surface of the ocean
at the same rate
dengan laju sama
since measurements began.
then shows the change in chemistry.
secara kimiawi.
has entered the ocean,
masuk ke laut,
an increase in ocean acidity.
monitoring ocean acidification --
juga memonitor asidifikasi laut --
Institute and NUI Galway.
dan NUI Galway.
acidification at the same rate
dengan laju yang sama
sites around the world.
of just how we collect our data
bagaimana cara kami mengumpulkan data
in the middle of winter.
sampel di pertengahan musim dingin
in the North Atlantic
stormy conditions --
who get a little motion sickness,
mudah mabuk laut
some very valuable data.
data penting
over the side of the ship,
melalui sisi samping kapal
that are mounted on the bottom
dipasang di bagian bawah
the surrounding water,
kondisi air
or dissolved oxygen.
samples in these large bottles.
dengan botol-botol besar ini.
which can be over four kilometers deep
yang bisa lebih dari 4 kilometer
right up to the surface.
pada interval teratur tepat di permukaan.
analyze them on the ship
di atas kapal
for the different chemicals parameters.
parameter kimiawi yang berbeda-beda
going to affect all of us?
bagi kita?
in ocean acidity of 26 percent
sebesar 26%
which is directly due to human activities.
langsung ke aktivitas manusia
our carbon dioxide emissions,
karbondioksida,
in ocean acidity of 170 percent
sebesar 170 persen
our children's lifetime.
anak-anak kita.
is 10 times faster
for over 55 million years.
selama 55 juta tahun
ever experienced
pernah mengalami
how they're going to cope.
bisa menghadapinya.
event millions of years ago,
jutaan tahun yang lalu,
than what we're seeing today.
yang kita lihat hari ini.
of many marine species.
masal spesies laut.
some species are actually doing quite well
bisa beradaptasi
respons negatif.
as ocean acidity increases,
kenaikan keasaman laut,
ions in seawater decrease.
menurun.
the building blocks
to make their shells,
membentuk cangkang mereka
ions in seawater
in order to build coral reefs.
of carbonate ions decrease,
to make their shells.
membuat rangka tubuhnya.
they can actually begin to dissolve.
pun bisa terlarut.
it's called a sea butterfly.
in the ocean for many species,
untuk banyak spesies,
was placed into seawater
di air laut
by the end of this century.
di akhir abad ini.
at this very realistic pH,
has almost completely dissolved.
semuanya.
right up through the food chain --
melalui rantai makanan --
likes shellfish? Or salmon?
in the ocean could be affected?
terkena dampaknya?
cold-water corals in Irish waters,
air-dingin di perairan Irlandia,
including some very important fisheries.
spesies yang vital bagi industri perikanan
by the end of this century,
in the entire ocean
di seluruh laut
that is dissolving their coral structure.
melarutkan struktur koral.
are these healthy tropical corals.
koral tropis sehat ini.
we're expecting by the year 2100.
yang kita perkirakan di akhir 2100.
has almost completely dissolved.
sepenuhnya terlarut.
in the entire ocean.
acidification is a global threat.
asidifikasi laut adalah ancaman global.
will look like when he's a grown man.
saat anak saya sudah besar
carbon dioxide into the atmosphere.
karbondioksida ke atmosfer.
carbon dioxide emissions.
emisi karbondioksida.
for industry, for governments.
untuk industri, untuk pemerintahan.
slow down global warming
pemanasan global
and a healthy planet
planet yang sehat
and for generations to come.
yang akan datang.
ABOUT THE SPEAKER
Triona McGrath - Chemical oceanographerTriona McGrath researches how the oceans are changing due to human activities.
Why you should listen
Dr. Triona McGrath researches how the oceans are changing due to human activities, particularly in relation to ocean acidification. Specifically, McGrath monitors levels of carbon dioxide in Irish marine waters to determine the accumulation and movement of carbon in the ocean and subsequent increase in ocean acidity. McGrath and her colleagues published the first rates of ocean acidification for Irish offshore waters and the first baseline dataset of carbon parameters in Irish coastal waters. This is crucial in our understanding of the future health of our oceans along with providing information to determine the impacts of ocean acidification on marine ecosystems.
McGrath is a post-doctorate researcher at the National University of Ireland, Galway, funded by the Marine Institute, Ireland. She has been researching ocean climate change since 2008; her latest research project started in February 2017, and for the next four years she will work with colleagues to further develop ocean acidification research in Ireland through the continuation of an ongoing time series in the Rockall Trough and the determination of seasonal and interannual variability of the carbon system in coastal waters. McGrath is a Fulbright Scholar, receiving a Fulbright Postdoctoral Scholarship in 2013 to visit Prof. Andrew Dickson’s laboratory at Scripps Institution of Oceanography, San Diego to further develop analytical skills in ocean carbon chemistry.
McGrath has a Ph.D. in Chemical Oceanography and Bachelor of Marine Science from the National University of Ireland, Galway.
Triona McGrath | Speaker | TED.com