As marine ecosystems become increasingly nutrient-starved, phytoplankton growth and net primary production throughout most of the world’s oceans would decline. We estimate that as these impacts ripple up the food chain, global fish catches could be reduced 20 percent by 2300, with decreases of more than 50 percent across the North Atlantic and several other regions. Moreover, at the end of our simulation net transfer of nutrients to the deep ocean was still taking place, which suggests that ecosystem productivity and potential fisheries catch would decline even further beyond 2300.
A friend of mine said the other day how the world has never been more silenced in its loudness. Our voice, one of our greatest weapons, is constantly being challenged by politicians, the media, and various ideologies spread by both.
Talk about the issues you believe deserve attention and don’t feel bad for only focusing on one or two! We can’t fix everything that’s broken on our own but collectively we can begin to change the practices that have dug us neck deep in trenches.
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Scientists have created a mutant enzyme that breaks down plastic drinks bottles – by accident. The breakthrough could help solve the global plastic pollution crisis by enabling for the first time the full recycling of bottles.
The international team then tweaked the enzyme to see how it had evolved, but tests showed they had inadvertently made the molecule even better at breaking down the PET (polyethylene terephthalate) plastic used for soft drink bottles. “What actually turned out was we improved the enzyme, which was a bit of a shock,” said Prof John McGeehan, at the University of Portsmouth, UK, who led the research. “It’s great and a real finding.”