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The Selli Event, also known as OAE1a, was an oceanic anoxic event (OAE) of global scale that occurred during the Aptian stage of the Early Cretaceous, about 120.5 million years ago (Ma). [1] The OAE is associated with large igneous province volcanism and an extinction event of marine organisms driven by global warming, ocean acidification, and ...
It is clear that the ocean is warming as a result of climate change, and this rate of warming is increasing. [2]: 9 The global ocean was the warmest it had ever been recorded by humans in 2022. [13] This is determined by the ocean heat content, which exceeded the previous 2021 maximum in 2022. [13]
Some climate change effects: wildfire caused by heat and dryness, bleached coral caused by ocean acidification and heating, environmental migration caused by desertification, and coastal flooding caused by storms and sea level rise. Effects of climate change are well documented and growing for Earth's natural environment and human societies. Changes to the climate system include an overall ...
The Middle Maastrichtian Event (MME) was a climatic perturbation that occurred during the Maastrichtian stage of the Late Cretaceous epoch. The event featured global drying, warming, and changes to ocean circulation and chemistry.
Human activities affect marine life and marine habitats through overfishing, habitat loss, the introduction of invasive species, ocean pollution, ocean acidification and ocean warming. These impact marine ecosystems and food webs and may result in consequences as yet unrecognised for the biodiversity and continuation of marine life forms.
Carnian Pluvial Event: 230 Ma: Wrangellia flood basalts, [20] or the uplift of the Cimmerian orogeny: Olenekian-Anisian boundary event 247 Ma Ocean acidification [21] Smithian-Spathian boundary event: 249 Ma Late eruptions of the Siberian Traps Griesbachian-Dienerian boundary-event 252 Late eruptions of the Siberian Traps [22] Permian
By doing so, the ocean has acted as a buffer, somewhat slowing the rise in atmospheric CO 2 levels. However, this absorption of anthropogenic CO 2 has also caused acidification of the oceans. [8] [10] Climate change, a result of this excess CO 2 in the atmosphere, has increased the temperature of the ocean and atmosphere. [11]
Climate change — Global warming • Global dimming • Fossil fuels • Sea level rise • Greenhouse gas • Ocean acidification • Shutdown of thermohaline circulation • Environmental impact of the coal industry • Urban heat islands • Flooding; Environmental degradation — Loss of biodiversity • Habitat destruction • Invasive ...