Treibhausgase bedrohen Klima und marine Ökosysteme

The earth's climate is changing. Multiple lines of evidence show changes in our weather, oceans, ecosystems, and more. The buildup of greenhouse gases in our atmosphere and the warming of the planet are responsible for changes.

In computer-based models, rising concentrations of greenhouse gases result in a rising average surface temperature of the earth over time. Rising temperatures may produce changes in precipitation patterns, storm severity, and sea level. Collectively, this phenomena is commonly referred to as ...

If yearly emissions continue to increase as rapidly as they have since 2000, climate models project that by the end of this century global temperature will be between 2.7°F (1.5°C) warmer than the 1901-1960 average, and possibly as much as 7.9°F (4.4°C) warmer, which would be catastrophic ...

Already a threat to fish, mussels, and other marine creatures, low-oxygen “dead zones” are expected to increase in both size and number as greenhouse gas concentrations and global temperatures continue to rise.

The impacts of anthropogenic climate change so far include decreased ocean productivity, altered food web dynamics, reduced abundance of habitat-forming species, shifting species distributions, and a greater incidence of disease.

In marine ecosystems, rising atmospheric CO2 and climate change are associated with concurrent shifts in temperature, circulation, stratification, nutrient input, oxygen content, and ocean acidification, with potentially wide-ranging biological ...

The changing climate and oceans have significant impacts on the nation’s valuable marine life and ecosystems, and the many communities and economies that depend on them. Scientists expect environmental changes such as warming oceans, rising sea levels, frequency and intensity of floods and droughts, and ocean acidification to increase with continued shifts in the planet’s climate system.

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Carbon dioxide and heat are both absorbed by the ocean as greenhouse gas levels increase. When carbon dioxide is dissolved in the ocean, the water becomes more acidic. This makes it harder for corals and some other marine life to grow shells ...