This is how climate change is impacting the ocean – and what we can do about it

(Credit: Unsplash)

This article is brought to you thanks to the collaboration of The European Sting with the World Economic Forum.

Author: Douglas Broom, Senior Writer, Formative Content

  • The ocean is a massive carbon sink, protecting us from the worst of climate change.
  • But rising air temperatures are melting glaciers, while warming seas are bleaching coral.
  • Action like coral reef restoration is already underway – and research has found some corals to be more resistant to higher temperatures.
  • And there are now calls to designate Marine Protected Areas for 30% of the ocean by 2030.

The ocean is inextricably linked to our climate. Rising air temperatures due to global warming are melting the polar ice caps and dissolving glaciers, leading to rising sea levels.

But the ocean is also playing a crucial role in protecting us from the worst effects of climate change. Scientists say the seas have absorbed 90% of all the warming that has taken place in the past 50 years.

On the rise

The Intergovernmental Panel on Climate Change (IPCC) says that by 2100, sea levels will be between 0.26 metre and 0.77 metres higher than today. It’s estimated that by 2100, rising sea levels will threaten 200 million people who live in low-lying coastal areas.

a map sowing where people will be most affected by rising sea levels
By 2100, sea levels will be between 0.26 metre and 0.77 metres higher than today. Image: Statista

Researchers say that almost half of the world’s sandy beaches could disappear as sea levels rise. It’s estimated that by 2050, more than 570 cities will be affected by a sea level rise of 0.5 metres.

Warming seas

The IPCC also estimates that even if the rise in global air temperatures can be held to 1.5°C, sea temperatures will rise by at least 2 °C by the end of the century.

a chart showing Sea temperatures since 1880.
Sea temperatures since 1880. Image: IUCN

Rising sea temperatures are to blame for “coral bleaching”. When the water is too warm the corals expel the algae living in their tissues and turn white. Scientists say that coral can recover from bleaching events but it is permanently weakened.

a picture of fish in coral
Coral reefs have the highest biodiversity on the planet, even greater than rainforests. Image: Pixabay/lpittman

Our changing waters

Meanwhile, melting freshwater from the world’s polar ice sheets changes the chemical composition of the sea making it hard for some species to survive. A study of the Baltic Sea warned that reducing salinity could threaten zooplankton, the tiny creatures who represent the foundation of the marine food chain.

Freshwater also changes ocean currents and if these fail or change course it can lead to oxygen-depleted “dead zones” where marine animals and plants cannot survive.

The oceans are our biggest carbon sink, absorbing around one-third of the CO2 emitted by human activity since the start of the Industrial Revolution.

Adding CO2 to seawater in these quantities acidifies the oceans and this is affecting many marine species, especially clams, mussels and sea snails which are unable to grow their shells in acidified waters.

a chart showing  How climate change impacts our ocean.
How climate change impacts our ocean. Image: IUCN

Coral research is making waves

Conservationists and community groups are taking action to restore their coral reefs. In Jamaica, which lost 85% of its coral to hurricanes and pollution, “coral gardeners” are nurturing young corals.

There’s hope, even, for the Great Barrier Reef in Australia, where scientists have developed a process they call “coral IVF” in which they collect coral sperm and eggs and grow new young corals which are then implanted in areas that have been bleached. They say the results are promising.

Meanwhile, corals in the Red Sea have been found to keep their colour, showing resistance to higher temperatures. Scientists conducting a genetic analysis on coral samples in the Gulf of Aqaba found those corals, and the algae and bacteria they live in symbiosis with, can withstand average temperatures 5°C higher than what they typically experience. It means they can identify ‘super coral’ that can withstand heat stress.

Towards sustainability

The carbon sequestration that the ocean provides will be vital if we are to slow the rate of global warming, says the International Union for Conservation of Nature (IUCN) which has called for 30% of the ocean to be designated as Marine Protected Areas (MPAs) by 2030.

Fishing and tourism needs to become more sustainable and coastal development needs to be controlled to prevent marine environments being harmed, says the IUCN. It adds tht research must continue so new measures can be developed as the damage to our seas becomes more obvious.

What’s the World Economic Forum doing about the ocean?

Our ocean covers 70% of the world’s surface and accounts for 80% of the planet’s biodiversity. We can’t have a healthy future without a healthy ocean – but it’s more vulnerable than ever because of climate change and pollution.

Tackling the grave threats to our ocean means working with leaders across sectors, from business to government to academia.

The World Economic Forum, in collaboration with the World Resources Institute, convenes the Friends of Ocean Action, a coalition of leaders working together to protect the seas. From a programme with the Indonesian government to cut plastic waste entering the sea to a global plan to track illegal fishing, the Friends are pushing for new solutions.

Climate change is an inextricable part of the threat to our oceans, with rising temperatures and acidification disrupting fragile ecosystems. The Forum runs a number of initiatives to support the shift to a low-carbon economy, including hosting the Alliance of CEO Climate Leaders, who have cut emissions in their companies by 9%.

Is your organization interested in working with the World Economic Forum? Find out more here.

Power to regenerate

The World Economic Forum has convened the Friends of Ocean Action, a group of 65 global leaders from business, civil society, international organizations, science and technology committed to fast-tracking solutions to the damage caused to our seas by climate change.

“We have the knowledge, power and technology to put the ocean on a path to recovery,” says the Friends’ mission statement. “The ocean’s power of regeneration is remarkable, if we just offer it the chance.”

Meanwhile, on 25-26 May, the Forum’s Virtual Ocean Dialogues event aims to encourage practical dialogue on the global ocean action agenda.

The Forum’s Uplink innovation crowdsourcing platform is also bringing environmental entrepreneurs together to share their innovations to save and protect the ocean, ranging from zero-carbon shipping to the restoration of coral reefs.

the sting Milestones

Featured Stings

Can we feed everyone without unleashing disaster? Read on

These campaigners want to give a quarter of the UK back to nature

How to build a more resilient and inclusive global system

Stopping antimicrobial resistance would cost just USD 2 per person a year

International community agrees on a road map for resolving the tax challenges arising from digitalisation of the economy

‘Crimes against humanity,’ ‘war crimes’ and risk of new ethnic violence in DR Congo, warn UN experts

Statement by OECD Secretary-General Angel Gurría on the outcome of COP 25

‘Maintain calm’ and ‘exercise patience’ UN envoy urges, as Nigeria heads to polls

The refugee crisis seen through the eyes of a young doctor from Turkey

Cleantech innovation is being stifled. Here’s how to unlock it

Basel III rules relaxed: Banks got it all but become more prone to crisis

These are the world’s 10 most innovative economies

4 myths about corruption

How to reimagine our cities as hubs for biodiversity, conservation and climate resilience

OECD and European Commission join forces to further support structural reforms in European countries

3 ways to protect LGBTI rights across the world

Commission disburses €14 billion under SURE to nine Member States

Protecting refugees in Europe: UNHCR calls for a ‘year of change’

‘Bicycle Kingdom’ makes a comeback, as China seeks solutions to tackle air pollution crisis

GSMA Announces First Keynote Speakers for 2019 “MWC Los Angeles, in Partnership with CTIA”

Palliative Care: A Gap to fill in healthcare service

5G will redefine entire business models. Here’s how

‘Catastrophic’ healthcare costs put mothers and newborns at risk

The Eurogroup protects Germany and blames others

How to talk about climate change: 5 tips from the front lines

Global Cooperation for Local Action: Fighting antimicrobial resistance

The future of crypto-assets, from opportunities to policy implications

This is what different countries are doing to stop coronavirus from spreading

Future-proofing the European banking market – removing the obstacles to exit

Why trade wars have no winners

Ηealth’s foundation is falling apart: what can we do about it?

European Commission and European Investment Fund launch €75 million BlueInvest Fund

Trade war or not New York bankers will have it their way

How building renovations can speed up the electric vehicle revolution

European Youth Capital 2018 : Cascais

Central African Republic: Guterres says UN mission committed to protecting civilians, helping stabilize country, as violence flares

Turkey needs to step up investment in renewables to curb emissions

Commissioner for Crisis Management in Kabul: EU steps up humanitarian assistance with €32 million

Senior UN children’s advocate says they ‘should never be targeted by violence’

A Sting Exclusive, the European Commissioner for Energy Günther Oettinger writes for the Sting on “EU Industry: a major energizer”

Chart of the day: These are the cities where the World Cup threatens productivity the most

Wash your hands, but keep your mind clean

Human rights breaches in Bangladesh, Cuba and Vietnam

New UN-supported farming app is cream of crop in tackling Sahel pest

Privatisation and public health: a question of Human Rights

Can this billion-dollar initiative save the world’s tropical forests?

European Investment Bank to borrow €70 billion in 2013

‘These are very dark times for Yemen’: senior UN official on air strike mass casualties

Why and how did ISIS and Muslim fundamentalism gain momentum this year?

Brexit: when the hubris of one man can set the UK, the EU and the entire world on fire

Warmongers ready to chew what is left of social protection spending

State aid: Commission refers United Kingdom to European Court for failure to fully recover illegal tax exemption aid of up to around €100 million in Gibraltar

Youth Forum calls on Parliament to ease entry into Europe for young people

Better sanitation for India is in the pipeline

Why transparency in drug pricing is more complicated than it seems

COVID-19: faster authorisation for vaccines adapted to variants

As inequality grows, the UN fights for a fairer world

DiscoverEU: 20,000 more young people will explore Europe in 2020

‘Undersea gardeners’ are restoring Jamaica’s lost coral reefs

The global response to the coronavirus pandemic must not be undermined by bribery

Banks must take bold action to fight climate change. This is how they can do it

COVID-19 threatens the developing world’s small businesses. This is how to save them

Chronic illnesses: UN stands up to stop 41 million avoidable deaths per year

Mediterranean migrant drownings should spur greater action by European countries, urge UN agencies

More Stings?

Speak your Mind Here

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s