Coral Reefs
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Why sharks and rays keep our oceans alive | Louisa Graf | TEDxDeakin Uni Melbourne
TEDx Talks· 2025-12-22 17:17
You're standing by the ocean and you look down into the water, but it's murky, cloudy, and a little bit sour on the nose. The schools of fish you used to see darting past look sickly, weak, and they're riddled with parasites. The coral reefs are overgrown with algae, suffocating.The seaggrass meadows, one of the planet's most powerful carbon sinks, are stripped bare. And the ocean warms. It feels different on your skin, no longer refreshing.Would you want to swim in this ocean, eat fish from this ocean, or ...
Invisible Threads: How Coral Reefs Connect to Your Life | Asha Nagar | TEDxAlpha School Austin Youth
TEDx Talks· 2025-09-10 16:39
Environmental Impact & Interconnectedness - Marine ecosystems, including coral reefs, produce over half of the Earth's oxygen [2] - The loss of coral reefs exacerbates global warming, leading to warmer summers and stronger storms [3] - Climate regulation and carbon reduction are significantly impacted by the health of coral reefs [4] - The interconnectedness of global ecosystems means issues seemingly distant have direct impacts on daily life [1][2][8][9][10] Socio-Economic Consequences - Declining fish populations due to coral reef degradation can lead to rising grocery bills [5] - The disappearance of coral reefs poses a threat to livelihoods, homes, and cultural heritage [6] - Communities face potential displacement due to stronger storms linked to coral reef loss [6] Call to Action & Responsibility - Individuals can contribute to coral reef preservation by choosing reef-friendly products and reducing their carbon footprint [7] - Recognizing the far-reaching impacts of environmental issues empowers individuals to take responsibility [9] - Indifference to environmental issues is no longer a viable option due to global interconnectedness [10]
The Silent Collapse Beneath the Waves | Reyansh Ambani | TEDxSeasonsStreet
TEDx Talks· 2025-08-08 15:06
Environmental Impact of Coral Reefs - Coral reefs support up to 25% of all marine life, despite covering less than 1% of the ocean floor [3] - Coral reefs protect coasts from hurricanes, support economies through tourism and fishing, and regulate the global climate by storing carbon [3] - Rising ocean temperatures, even by one or two degrees, cause coral bleaching, leading to coral starvation and death [4] - Corals in contact with plastic have an 89% higher chance of contracting a disease [5] Potential Solutions - Coral gardening, involving growing coral fragments in underwater nurseries and transplanting them onto damaged reefs, shows great improvement in various locations [7] - Cloud brightening, spraying fine droplets of seawater into the sky to reflect sunlight, is being experimented with to cool oceans and help coral survive heat waves [8] - Reducing greenhouse gas emissions and plastic consumption globally is crucial for coral reef preservation [9] Call to Action - Support reef restoration through donations and volunteer work [11] - Raise awareness and promote action regarding coral reef conservation [11] - Choose reef-safe products, including sunscreen and seafood, to protect the oceans [11]
The Silent Crisis of Coral Reefs | Kimi Wong | TEDxYouth@BIPH
TEDx Talks· 2025-06-30 16:59
Environmental Impact & Risks - Coral reefs, vital ecosystems, are disappearing rapidly due to rising ocean temperatures [1][2] - A temperature increase of just 1 degree Celsius is devastating coral reefs that have existed for 500 million years [3] - Coral reefs, despite covering only 02% of the ocean floor, are home to 25% of all marine fish [4] - The world has witnessed a 50% decline in coral population over the past century [6] - Scientists predict that by 2050, coral populations could be gone if ocean conditions remain unchanged [6] Economic & Social Relevance - Coral reefs provide nurseries for fish, benefiting coastal communities [5] - They hold potential cures for diseases like cancer, acting as pharmacies [5] - Coral reefs act as storm shields, protecting against hurricanes, storms, and typhoons [5] Call to Action & Mitigation - Coral bleaching is occurring more frequently, every six years instead of every 25 years [9] - Individual actions, even small ones, can create significant change [11] - Spreading awareness about coral reefs is crucial for their conservation [12]