Meghan Hodges
The ocean is a vital resource that provides climate regulation, food, jobs, livelihoods, and economic progress. However, it is currently under serious threat from human activities such as pollution, climate change, and overfishing. If we don't take action to protect our oceans, the consequences will be dire. Plastic pollution, for example, is already killing over 100 million marine animals every year, and by 2024, it is estimated that plastic pollution will triple, severely threatening marine life. The ocean's ability to regulate our climate is also at risk, as increased water temperatures and acidification are already impacting ocean ecosystems and currents, and coral reefs, which provide protection from storm surges, are being pushed towards extinction. To protect our oceans, we must reduce waste, consume less, transition to renewable energy, and practice sustainable fishing strategies.
| Characteristics | Values |
|---|---|
| Marine life saved | Over 100 million marine animals are killed by plastic pollution every year. |
| Marine life saved | 80% of species globally are affected by plastic pollution. |
| Marine life saved | 50% of coral reefs have been pushed toward extinction. |
| Marine life saved | Marine debris harms or kills animals, damages habitats, and competes with active fishing. |
| Flooding prevented | Rising sea levels caused by warming waters will cause severe floods. |
| Flooding prevented | Some cities could be largely destroyed by flooding, e.g. 40% of Bangkok. |
| Climate change mitigated | The ocean absorbs 25% of all carbon emissions, helping to regulate temperatures. |
| Climate change mitigated | The ocean has taken up over 90% of the excess heat in the climate system. |
| Economies protected | The ocean economies are valued at $3 trillion per year. |
| Economies protected | The US shellfish industry could lose over $400 million annually by 2100 due to ocean acidification. |
| Economies protected | The ocean provides 57 million jobs globally. |
| Economies protected | The ocean provides 50% of the oxygen we need to survive. |
| Economies protected | The ocean provides 15% of the animal protein we eat. |
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What You'll Learn
- Marine life will thrive, without the threat of plastic pollution, choking hazards, and suffocation
- The ocean's ability to regulate climate will be maintained
- The ocean will continue to provide livelihoods to 3 billion people
- The resilience of coastal communities to climate change impacts will be preserved
- The ocean will remain a source of wealth for nations, through fisheries, tourism, and coastal property protection
Marine life will thrive, without the threat of plastic pollution, choking hazards, and suffocation
Marine life will thrive without the threat of plastic pollution, choking hazards, and suffocation. Plastic pollution in the ocean is a pressing issue, with between 10 and 20 million metric tons of plastic debris polluting and destroying marine ecosystems. This pollution has impacted at least 267 species worldwide, including sea turtles, seabirds, and marine mammals.
One of the main ways plastic pollution harms marine life is through ingestion. Seabirds, in particular, mistake small plastic fragments on the water's surface for food, leading to choking and intestinal blockages, which can be fatal. Additionally, when plastic is ingested, it can cause starvation as it fills the stomach without providing any nutritional value. This is true for both adult and baby marine life, as some adult seabirds have been observed feeding plastic pieces to their chicks, impacting their growth and survival.
Furthermore, plastic pollution can lead to suffocation in marine animals. This is especially true for smaller species, such as molluscs, which filter seawater to feed and inadvertently take in microplastics, blocking their respiratory systems.
The presence of plastic in the ocean also poses a threat to marine life through entanglement. Large items of plastic can capture and entangle marine mammals and fish, restricting their movement, causing injury, and making them more vulnerable to predators. This is a significant issue for endangered species such as the Hawaiian monk seal, whose habitats and pup nurseries have been found to contain large amounts of plastic debris.
Additionally, microplastics, which are smaller than 5mm or even microscopic, are easily consumed by marine life and can have detrimental effects. These tiny plastic particles can adsorb toxins, leading to bioaccumulation in the fatty tissues of animals. This biomagnification moves up the food chain, resulting in higher concentrations of toxins in apex predators such as orcas and great white sharks, which can be passed on to their young through breast milk.
By reducing and eliminating plastic pollution in the ocean, marine life will be freed from the threats of choking, starvation, suffocation, and entanglement caused by plastic debris. This will allow for the thriving and flourishing of diverse marine ecosystems, benefiting not only marine life but also coastal communities and the planet as a whole.
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The ocean's ability to regulate climate will be maintained
The ocean plays a crucial role in regulating the Earth's climate, and its ability to do so is currently threatened by human activities that contribute to ocean pollution. By reducing and eliminating ocean pollution, we can help maintain the ocean's ability to regulate climate and mitigate the impacts of climate change.
The ocean is the largest solar energy collector on Earth, covering over 70% of the planet's surface. It absorbs a significant amount of heat and solar radiation without experiencing a significant increase in temperature. This ability to store and release heat over long periods helps stabilize the Earth's climate by distributing heat around the globe. The ocean's heat content has been consistently above average since the mid-1990s, and it is estimated that over 90% of the excess heat trapped in the Earth's system due to human-caused global warming has been absorbed by the oceans.
The ocean also plays a crucial role in absorbing and storing carbon, dominating the carbon storage budget in the climate system. It is estimated to be absorbing about 30% of anthropogenic carbon currently and has been the main regulator of atmospheric CO2 in past climates. However, the increased absorption of CO2 has led to ocean acidification, which poses a significant threat to marine life, including pteropods, shellfish, and coral reef systems.
By reducing our consumption and waste, transitioning to renewable energy sources, and improving agricultural practices, we can decrease ocean pollution and maintain the ocean's ability to regulate climate. For example, using wind power for propulsion and optimizing shipping routes can reduce shipping pollution. Additionally, properly treating sewage can prevent marine life deaths and potential contamination of people.
If we fail to protect the ocean, we will accelerate climate change and reduce our resilience to its impacts. Coral reefs, for instance, provide coastal communities with protection from storm surges, but they are already under threat due to climate change, pollution, and overfishing. By conserving and protecting marine ecosystems, we can help maintain the ocean's ability to regulate climate and mitigate the effects of climate change.
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The ocean will continue to provide livelihoods to 3 billion people
The ocean is a source of livelihood for 3 billion people, almost half of the global population. It provides jobs, food, and economic progress. Marine fisheries provide 57 million jobs globally. The ocean is also a source of animal protein for humans, with seafood being the primary source of protein for over 50% of the population in the least developed countries.
The ocean is a significant economic tool, with ocean economies being among the most rapidly growing in the world. The market value of marine and coastal resources and the developing industry is estimated at US $3 trillion per year, which is about 5% of the total global gross domestic product. The ocean also generates wealth through tourism, with coral reefs being a prime example of this.
If we do not protect the ocean, we will lose these sources of livelihood for billions of people. Marine ecosystems are already being harmed by pollution, climate change, and overfishing, and this will only get worse if no action is taken. Pollution in the form of plastic waste, fossil fuels, agricultural runoff, and untreated sewage is killing marine life and destroying ecosystems. Climate change is causing ocean temperatures to rise, leading to increased acidity, which makes it difficult for coral and crustaceans to form shells, leaving them vulnerable to disease and predators.
By reducing pollution and mitigating climate change, we can ensure that the ocean continues to provide livelihoods for people around the world. This includes committing to using less plastic, transitioning to renewable energy, improving agricultural practices, and properly treating sewage. Additionally, implementing sustainable fishing practices and creating more protected areas can help fish populations rebound and ensure continued access to this vital resource.
Through active conservation and sustainable management, we can protect the ocean's biodiversity and the livelihoods that depend on it, allowing people to thrive and build a more resilient future.
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The resilience of coastal communities to climate change impacts will be preserved
The resilience of coastal communities to climate change impacts is a pressing issue that needs to be addressed. Coastal communities are already facing the consequences of sea-level rise, flooding, and pollution. By reducing ocean pollution, we can help preserve the resilience of these communities in several ways.
Firstly, it is important to address the sources of ocean pollution, which include human activities such as littering, poor waste management, and agricultural runoff. By implementing better waste management practices and improving agricultural techniques, we can reduce the amount of pollution that reaches the ocean. This, in turn, will help to preserve the health and quality of coastal waters, protecting both marine life and human health.
Secondly, the preservation of coral reefs is crucial. Coral reefs provide significant protection to coastal communities from storm surges and can reduce up to 97% of a wave's force. Climate change, pollution, and overfishing have already pushed coral reefs toward extinction. By reducing ocean pollution, we can help coral reefs recover and continue to provide this vital protection for coastal communities.
Additionally, reducing ocean pollution can contribute to mitigating climate change. The ocean absorbs about 90% of the heat generated by rising greenhouse gas emissions, leading to marine heatwaves and ocean acidification. By transitioning to renewable energy sources, such as wind power and ocean-based renewable energy, we can reduce carbon emissions and slow down the rate of ocean warming and acidification. This will help to preserve the resilience of coastal communities by reducing the intensity of marine heatwaves and mitigating the adverse effects of ocean acidification on marine life.
Furthermore, by reducing ocean pollution, we can help sustain fisheries and protect the livelihoods of fishing communities. Climate change and pollution have already led to decreases in commercial fishing harvests, with some fish populations shifting to cooler waters. By reducing pollution and mitigating climate change, we can help sustain fish populations and support the resilience of coastal fishing communities.
In conclusion, reducing ocean pollution is crucial to preserving the resilience of coastal communities to climate change impacts. By addressing pollution sources, protecting coral reefs, mitigating climate change, and sustaining fisheries, we can help ensure that coastal communities are better equipped to withstand the challenges posed by a changing climate.
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The ocean will remain a source of wealth for nations, through fisheries, tourism, and coastal property protection
The ocean is a vital source of wealth for many nations, and this will continue to be the case if we successfully combat ocean pollution. Fisheries, tourism, and coastal property protection all contribute significantly to the economies of many countries.
Fisheries are a crucial source of food and employment for millions of people worldwide. According to the FAO, the fisheries and aquaculture sector employs around 62 million people in primary fish production, and approximately 600 million livelihoods depend on fisheries and aquaculture. Well-managed fisheries can also help alleviate poverty and increase shared prosperity, as seen in the Mais Peixe Sustentável project in Mozambique. By encouraging investment in sustainable fisheries and aquaculture value chains, the project has benefited over a thousand artisanal fisher households.
Tourism is another significant driver of economic growth and wealth generation for coastal nations. Regions like the Caribbean and Southeast Asia are strongly dependent on tourism for their economic well-being. Coral reefs, in particular, offer significant economic value, with "on-reef" tourism activities such as diving, snorkelling, and glass-bottom boating contributing $19 billion annually. Additionally, "reef-adjacent" tourism, which includes activities like enjoying beach views, local seafood, and paddleboarding, adds another $16 billion to the economy.
Coastal ecosystems, such as coral reefs, oyster reefs, salt marshes, and mangroves, provide essential protection against coastal flooding and erosion. These natural barriers can help raise the elevation of the seabed or land, keeping up with rising sea levels. For example, mangroves can significantly reduce wave heights, providing coastal protection benefits worth more than $450 million per year in the Philippines, Mexico, and Malaysia. By investing in the health and conservation of these ecosystems, nations can protect valuable assets and infrastructure from flood damage, saving billions of dollars in potential storm costs.
By addressing ocean pollution and investing in sustainable practices, nations can ensure that the ocean remains a source of wealth through fisheries, tourism, and coastal property protection. This includes promoting renewable energy, reducing plastic waste, improving agricultural practices, and treating sewage properly. By taking these actions, we can not only preserve the ocean's health but also maximize its economic potential for the benefit of coastal communities and the world at large.
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Frequently asked questions
By reducing ocean pollution, we can prevent the destruction of marine ecosystems, protect marine life, and preserve the ocean's ability to regulate our climate. Additionally, reducing pollution can lead to economic benefits, as the ocean economies are among the most rapidly growing in the world, contributing an estimated US $3 trillion per year to the global economy.
Plastic pollution has severe impacts on marine life, with up to 80% of species globally affected. Marine animals choke on plastic or suffocate due to ingesting plastic debris. It is estimated that plastic kills over 100 million marine animals every year, including fish and birds. Additionally, microplastics, tiny plastic particles smaller than 5 mm, have been ingested by two-thirds of all studied fish species, including those consumed by humans.
To reduce ocean pollution, we can transition to renewable energy sources, such as wind power, optimize shipping routes, and implement "slow steaming" to reduce fuel consumption. Improving agricultural practices, such as proper fertilizer usage, can prevent agricultural runoff from contaminating the oceans. Treating sewage properly is crucial to prevent the killing of marine life and potential human health risks. Additionally, we must move away from single-use plastics and embrace a circular economy where items are reused, refilled, and repaired.
