WHAT if PHOTOSYNTHESIS stopped HAPPENING?

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WHAT if PHOTOSYNTHESIS stopped HAPPENING?

It's a concept most children learn in science class: Photosynthesis converts light energy to chemical energy. Essentially, photosynthesis is the fueling process that allows plants and even algae to survive and grow. So what would happen if photosynthesis suddenly stopped happening?
If photosynthesis came to an abrupt end, most plants would die within short order. Although they could hold out for a few days -- or in some cases, a few weeks -- how long they lived would largely be a factor of how much sugar they had stored within their cells. Large trees, for example, may be able to soldier on for several years — perhaps even a few decades — because of their energy stores and the slow rate of use. However, the majority of plants would meet a withering end, and so would the animals that rely on them for nourishment. With all the herbivores dead, the omnivores and carnivores would soon follow. Although these meat-eaters could feed on all the carcasses strewn about, that supply wouldn't last more than a few days. Then the animals that temporarily relied on them for sustenance would die.

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