Rainforests are home to 50% of all species on earth in only 2% of all earth’s land. Therefore, the earths oxygen production does depend on the rainforest plant life quite a bit because of the photosynthesis process. As you many know, photosynthesis is the process where plants use CO2 and sunlight to gain energy, and releases oxygen as a waste product into the environment. Because of increased deforestation, carbon dioxide levels are steadily increasing.
Carbon dioxide is a gas that absorbs the sun’s UV rays, and ruins the ozone layer that protects the earth from these harmful rays. Deforestation causes a weaker ozone layer, further leading to global warming. Not only does deforestation interfere with the earth’s way of removing carbon dioxide, but it also adds carbon dioxide emission because the trees are usually burned after being cut down. When deforestation is paired with other carbon emitting activities such as aviation, automobiles, telephones, or heavy use of electronics, global warming can become even worse condition than it already is.
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Dramatic changes to sea algae could herald devastation for human life:
Huge changes in the make-up of North Sea and North Atlantic Ocean algae in the space of five years could have harmful knock-on effects for human health and the rest of the food chain, research from Welsh scientists has revealed.
The changes seen in algal blooms – shifting from dinoflagellate to diatom algaes – could mean a build-up of toxins on feeder organisms.
Professor Graeme Hays, from Swansea’s Department of Biosciences in the College of Science, and an author in the study, said: “Imagine looking at your garden one morning and finding that the grass had suddenly been replaced by bushes. This may sound far-fetched, but we have found changes of this magnitude in the biology of the North Atlantic, with a dramatic switch in the prevalence of dinoflagellates to diatoms – two groups which include many of the microscopic planktonic plants forming the base of the ocean’s food chain.”
A big welcome to the Einztein community of learners for new arrivals.
I’m not a biologist but a recent article in National Geographic caught my eye. Let me sum it up for you.
A recent study by Aquascience (http://www.aquascience.co.uk/) finds that the life of the British Mayfly has been cut short by 50% due to warming temperatures. As it was, mayflies only lived about two years, mostly as aquatic larvae, and got to enjoy their adulthood as winged creatures for only a few hours. Now, their lifespans have been reduced to one year! What does this mean, other than reminding us that life is short? The younger the mayfly dies, the less eggs it hatches during its life, so the potential for disruption to the food chain is enormous, since the mayfly is an important food staple for fish and birds.
This makes me wonder what other changes we will discover as environmental changes accelerate.