Sealevel rise and increased evaporation due to climate change cause salinisation of freshwater. Salinisation of wetlands may also lead to higher emissions of greenhouse gases.
Biodiversity
Ocean Acidification (OA) caused by carbon dioxide from the burning of fossil fuels puts our seas at danger.
Where the Andes meet the Amazon, you will find one of the earth’s richest and most important biomes. Its role has been overlooked in our efforts to mitigate climate change.
Increasingly frequent marine heatwaves can lead to the almost instant death of corals, scientists working on the Great Barrier Reef have found.
Carbon emissions make seas more acidic and wiped out 75 per cent of marine species around 66 million years ago, reports a new study according to the Guardian.
The IPCC’s Special Report on The Ocean and Cryosphere in a Changing Climate and its summary for policymakers provide scary reading about ongoing changes and risks, as well as projected risks.
Tropical coral reefs face high risks of becoming unsustainable if warming exceeds 1.5°C.
Salmonid fish are sensitive to increased water temperatures. Decreased precipitation, forest fires and ocean acidification are other threats that come with climate change.
By absorbing CO2 the ocean is becoming more acidic, and this is happening at a faster rate than during any other period in the past 300 million years.
The greenhouse effect, global warming, local pollution and implications for coral reefs described in a regional overview.
At current projected levels of temperature increase it has been suggested that tropical coral reefs could be lost altogether as soon as 2050.