coral Archives - Disasters News

Apr302025 by Editor DeskNo Comments

Coastal models show how island nations may adapt to sea level rise

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Scientists simulate real-world wave impacts on coral atolls to study future flood risks and explore limits of adaptation. New hope for vulnerable island communities A groundbreaking study using coastal models has revealed how natural coral atoll islands may respond to rising sea levels and more frequent wave-driven flooding. The research, led by Roelvink et al. [2025] and published in Earth’s Future, offers fresh insights into how sediment naturally accumulates on the ocean-facing side of islands, helping raise their elevation and reduce the impact of future overwash during extreme weather events. These findings are particularly relevant for rural, low-lying islands in the Maldives and Pacific Ocean, where communities depend heavily on coral reef protection and are among the first...

Feb212025 by Editor DeskNo Comments

Carbon Levels Hit Record in 2024 as Climate Change Escalates

Breaking News, Climate Actions, Environment, Fact Check

Atmospheric carbon dioxide concentrations reached a new high of 422 parts per million in 2024, according to the European Union's Copernicus Climate Change Service (C3S). This milestone follows another record-breaking year for global temperatures, increasing pressure on policymakers to take more aggressive action against climate change. Recent studies indicate that global warming may be accelerating beyond previous estimates. The world may have already reached 1.5°C above pre-industrial temperatures, a critical threshold for triggering extreme and irreversible climate impacts. Research published in Nature Geoscience in November 2024 used 2,000 years of Antarctic ice core data and found warming at 1.49°C in 2023, based on a longer pre-industrial baseline. Ocean Warming and Storm Intens...

Nov202024 by Editor DeskNo Comments

Great Barrier Reef Faces Record Coral Mortality Amid Bleaching Crisis

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The Great Barrier Reef, a global icon of marine biodiversity, has suffered unprecedented coral loss, with Australian researchers reporting the highest mortality on record. Surveys conducted by the Australian Institute of Marine Science revealed up to 72% coral mortality across 12 reefs, driven by a summer of extreme weather, including mass bleaching, two cyclones, and flooding. Severe Decline in Northern Reefs In the reef's northern section, a third of hard coral perished the largest annual decline in 39 years of monitoring. Scientists fear similar devastation may have occurred in other parts of the 2,300-kilometer-long reef, known as the world's largest living structure. Mass bleaching occurs when rising sea temperatures force corals to expel the microscopic algae (zooxanthellae)...

Sep252024 by Editor DeskNo Comments

Research Uncovers Heat Tolerance Variability in Corals Offering Hope for Reef Survival

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A new study has revealed surprising variations in heat tolerance among coral colonies, offering new insights into their potential survival as global ocean temperatures rise. Even corals of the same species, living side by side, exhibit significantly different responses to heat stress, highlighting the complexity of coral resilience. The findings, published today, come as the world grapples with the impact of climate change on coral reefs. With the fourth global mass bleaching event recently declared and the Great Barrier Reef suffering five mass bleachings since 2016, these discoveries are crucial for future conservation efforts. Variable Heat Tolerance in Coral colonies The research focused on the tabular coral Acropora hyacinthus, a species highly vulnerable to heat waves but es...