2050 is predicted to be a bleak milestone for the oceans - but it's not too late to avert
disaster.
Here are 10 actions the world can take to strengthen and preserve our oceans for
generations to come.
The year 2050 has been predicted by some to be a bleak year for the ocean.
Experts say that by 2050 there may be more plastic than fish in the sea, or perhaps
only plastic left. Others say 90% of our coral reefs may be dead, waves of mass
marine extinction may be unleashed, and our seas may be left overheated, acidified
and lacking oxygen.
It is easy to forget that 2050 is not that far off. Kids we see building sandcastles on
the beach today might be gaining traction in their jobs and perhaps starting their own
families. The possibility that our children may inherit from us such a broken and
diminished ocean is hard to accept.
Such a future, however, is not yet written in stone. A healthier, more whole, and
maybe even more profitable future ocean may still be within reach – at least for a
little while.
Here are 10 steps that could take us towards a more desirable ocean future:
1. Freeze the warming. Stopping climate change is the hardest but most important
step we can take for ocean health. It is good news to have the US back in the Paris
Agreement. However, we now need ambitious national commitments to achieve
carbon neutrality from all signatories of the Agreement. Recent actions by China, the
EU, Japan and the UK are also positive.
2. Walk the talk. We need to make these carbon neutrality commitments real. This
will require massive new investment in renewable energy sources, including some
more experimental solutions (such as fusion), plus potentially looking with open
minds into making older low-carbon energy solutions safer and more viable (such as
traditional nuclear). We need to fast-track the development of sustainable next-
generation batteries to store this energy intelligently across our grids. This includes
major needs for marine energy infrastructure. A future, for example, with electrified
ports and low-emission ships would help eliminate the epidemic of deafening ocean
noise, address environmental injustices associated with pollution in ports, make oil
spills a thing of the past, and significantly reduce global emissions.
3. Blue revolution. The 'green revolution' – a massive ramping up of food production
on land in the 1950s – has belatedly reached the sea. Ocean farming, or
aquaculture, has increased by more than 1,000% in the ocean recently. The green
revolution was sloppily executed, and the first baby steps of the blue revolution have
included similar stumbles: chemical pollution, genetic pollution and habitat
destruction. But the blue revolution can still clean up its act. Farming in the right
places, with the right species, and the right practices could make aquaculture a win
for human and environmental health. Ocean food research (into plant-based and
cell-based seafood, for example) could also help us meet growing demand for
seafood sustainably.
4. 30 x 30. Parks protect some of our most important chunks of nature on land – our
Yellowstones and Serengetis. We are vastly behind setting up parks in the sea. We
need to follow through on calls to protect 30% of our ocean by 2030. This must be
as much about quality as quantity. We need to use intelligent planning algorithms
and the intelligence of local and indigenous people to select the very best 30% of the
sea to protect. Then the hard work begins. We must develop and deploy new
technology to monitor and protect the living assets we put in these ocean savings
accounts.
5. The other 70%. An ocean industrial revolution is beginning. Human industry is
growing at exponential rates in the sea. Even if we succeed in protecting 30% of the
ocean, we must still intelligently zone and manage this accelerated anthropogenic
growth in the majority of our unprotected ocean. We largely missed that boat on
land. Proactive steps to sustainably onboard an ocean industrial revolution include
responsibly managing wild capture fisheries (and making more money in the
process), carefully zoning what marine industries go where, eliminating harmful
fisheries subsidies, and coming to grips with the fact that some new marine
industries, like ocean mining, are simply too dangerous to be allowed into the ocean.
6. Big cracks in the sea. Most of the ocean belongs to us all. This includes the two-
thirds of the ocean in the high seas that lies beyond all nations’ ocean borders and
the marine regions surrounding Antarctica. Protection of biodiversity and equitable
sharing of resources has slipped through antiquated governance gaps in these
international ocean spaces. But a proposed new UN Treaty for high seas biodiversity
– and negotiations to sustainably manage and protect Antarctic waters could help.
7. End plastic pollution. Plastic pollution is the ocean’s new cancer. We need to ban
unnecessary plastics and tax other single use plastics, finally making them valuable
materials we want to recover and helping to pay for the full cost of their
environmental impacts. We need research and tech to prevent plastics from leaking
into the sea, to overhaul our recycling systems, and to design economically viable
alternatives to plastics. This progress may be accelerated by a proposed
international ‘Paris Agreement’ for plastic pollution.
8. Land. We can help the ocean by first setting a few things right on land. We must
massively increase our ambition to save our forests, thus locking up a huge chunk of
carbon dioxide. We need to stop wastefully spilling megatons of costly fertilizers into
rivers that are creating hundreds of marine dead zones. Precision agriculture that
optimizes fertilizer use, coupled with other farming reform practices can help.
9. Wired ocean. We need more ocean data. This includes new tech to detect illegal
fishing and connect sustainable fishers to consumers. We need tech to help
endangered marine wildlife co-exist with ocean industry and fleets of environmental
sensors above and below the water to better study our rapidly changing ocean.
10. Ocean equity. To build a healthy ocean, we must ensure all people have a fair
stake in its success and that they are no longer unevenly harmed by ocean health
risks. The fate of the ocean will affect people in all communities. Thus, we need
people from all communities in ocean science, management, and policy.
Fulfilling the apocalyptic predictions for a 2050 ocean will be all too easy. Altering
that ocean future may be one of the hardest things we’ve ever collectively achieved.
But the consequences of inaction will be even harder to shoulder – for us and our
oceans.
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