Our planet already has its long period of existence and has already gone through several changes. One of them, which researchers consider one of the most drastic, is climate change. This has been affecting the world in many different ways and, perhaps, is heading towards a point where it becomes increasingly difficult to maintain our existence.
This climate change is caused by man and his actions with the environment. And, in the long run, it can have serious consequences for humanity. Human action has already significantly accelerated global warming. This is increasingly evident with environmental phenomena that happen around the world. For example, the frosts in Chicago in 2019 and the fires in Australia.
From large icebergs, which broke away from Antarctica, to a possible extinction of life forms on our planet. Climate change is real and affects all environments. Be it air, water or land.
As much as everything seems to be going worse and worse, there is still good news related to the environment. According to a NASA study, which was led by Chi Chen, a physician at the University of Chicago, our planet is greener today than it was 20 years ago.
To be able to see this result, Chen’s team had the help of NASA. And they found that between 200 and 2019, the amount of green space grew by 5%. Which means an increase of three million square kilometers.
According to the study, reforestation in the world had its biggest increase in recent decades. We know the importance that nature has for our survival on the planet, even so, for several times we end up forgetting and leaving this subject aside.
Even though this growth has been noticed, it is still necessary to make a great effort in all countries of the world. After all, only two nations were the ones that registered a third of the increase. They were: China and India.
The team analyzed the images obtained over 20 years and found that, gradually, more areas with trees appeared. This growth exceeded 2.3% per decade.
According to the study, other countries also contributed with reforestation actions and showed an increase in their green areas. They were: the nations of the European Union (6%), Canada (5%), Russia (3%), Australia (3%), the United States (2.5%) and Mexico (2.4%).
On the other hand, the places with the greatest loss of green areas were Brazil, Democratic Republic of Congo and Indonesia.
According to NASA , the reason why China has a greater number of green areas is because the country’s government promotes a large reforestation system to alleviate pollution. In addition, another major factor is the amount of territory that is ceded to self-consumption agriculture, which represents 55% of the total areas.
India has also managed to increase its green spaces thanks to self-consumption agriculture. This is not surprising, as the number of people living in the territory is large.
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When we are at school, we learn that the way of life is to be born, grow, reproduce and die. Well, sometimes the midway can be different, but the beginning and the end are the same no matter which living being you are. But as time goes by, the world, and also all living beings in it, including humans, go through changes.
For example, a professor of environmental medicine is warning about the rapid decline in humanity’s fertility rates . According to her, chemicals in plastic are the main culprits.
Professor Shanna Swan teaches environmental medicine and public health at the Mount Sinai Icahn School of Medicine in New York City. She helped complete a large study in 2017 that found sperm counts among men in Western countries had dropped more than 50% over the past four decades.
In February of that year, Shanna released her book “Count Down”. He investigates how and why humans are losing their ability to procreate.
“People are acknowledging that we have a reproductive health crisis, but they say it’s because of delayed childbearing, choice or lifestyle. It cannot be chemical. I want people to acknowledge that it is. I’m not saying other factors aren’t involved. But I’m saying chemicals play an important causal role,” Shanna said.
In the 2017 study, researchers found that sperm concentration dropped from 99 million per mL in 1973 to 47.1 million per mL in 2011. This sharp decrease in sperm is 53.4% in men in Western countries like for example, Australia New Zealand, North America and Europe.
According to Shanna, one of the main causes of this decrease are products that “interfere or mimic the body’s sex hormones”.
“The phthalates, used to make plastic soft and flexible, are a primary concern. They are in everyone and we are probably mainly exposed through food, as we use soft plastic in the manufacture, processing and packaging of food”, he explained.
“They lower testosterone and therefore have the strongest influences on the male side, for example lowering sperm counts , although they are also bad for women, showing that they decrease libido and increase the risk of precocious puberty, ovarian failure premature birth, miscarriage and premature birth,” he continued.
Shanna goes further and projects that the world will be on the verge of becoming completely infertile by 2045. “The current state of reproductive affairs cannot continue for much longer without threatening human survival,” she pointed out.
As dire as this situation is, there is hope. Shanna says the chemical industry needs to develop chemicals that are not hormonally active to be used domestically.… Read more