Nature

Many people are concerned about environmental issues. Not only the fiercest activists, but also politicians, stars, cinematographers and ordinary people periodically return to them. The most discussed phenomena in terms of environmental problems are global warming and ozone holes. Everything seems to be clear with the first one — the temperature has risen, which means warming. And what about the holes and why are they called that? Are they holes at all and where are they located? What influences them and can they be ”sewn up”? Is it true that they exist, or is it all a big hoax? As you can see, I have already asked more questions in the introduction alone than I can answer. But there are answers to some of them. If you have not thought about the need to protect the ozone layer, perhaps after reading this article you will change your mind. And at the same time you will understand that not only some mystical corporations influence its depletion, but also each of us by our actions and habits.

The ozone hole is called the local depletion of the ozone layer, which covers our planet at an altitude of about 25 kilometers. As such, there is no hole there, there is precisely depletion, a decrease in the concentration or thickness of the layer. But this is already enough to lead to unpleasant consequences in this area.

To measure the ozone layer, it is customary to use a unit of measurement called the “Dobson unit”. One such unit is equal to the ozone layer of 10 microns. The thickness of the ozone layer above the earth’s surface differs in different places, but holes are usually called those places where the ozone content drops to 220 Dobson units.

What is an ozone hole? When this happens, something has to be done. Or not? Photo.

When this happens, something has to be done. Or not?

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Today, the topic of climate change has flooded the global information space. And this is good news, because the more we know about the problem, the more we learn about the methods and ways to solve it. Global warming affects not only animals that are losing their habitual habitats, but also you and me. Scientists are concerned about the impact of climate change on human health. And first of all, this applies to people suffering from allergies. According to recent studies, climate change will worsen the symptoms and incidence of allergic diseases.

Climate change can cause allergies. Climate change is dangerous for people with allergies, scientists have found. Photo.

Climate change is dangerous for people with allergies, scientists have found

Content

1 Why is the climate on Earth changing?
2 How can climate change cause allergies?
3 Ragweed pollinosis is the main threat to the health of allergy sufferers
4 How are allergies and climate related
Why is the climate on Earth changing?
The scientific community is united in the opinion that the climate on our planet is changing rapidly. The culprit is the anthropogenic factor — the direct human impact on the environment. Population growth, deforestation, the use of large amounts of land for agricultural purposes and the huge scale of production of a wide variety of products have a detrimental effect on the climate.

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Everyone knows that it is quite hot in tropical latitudes, but even in such a warm climate there is a place for real glaciers. Scientists call them tropical glaciers, and these rather unusual objects are located on the slopes and peaks of local mountain ranges. However, this wonderful and beautiful phenomenon may soon disappear from the face of the Earth. At least, this is what a recent study by a group of American scientists says. And, to be honest, in the field of the latest news about global climate change, there is practically no doubt about it.

When the tropical glaciers disappear completely. Glaciers are melting. And this is a huge problem. Photo.

Glaciers are melting. And this is a huge problem

When will the tropical glaciers disappear?
Glaciers located at the top of Mount Punchak Jaya, which is located on the western half of the island of New Guinea, have been melting for many years. This is stated by one of the authors of the new work, Professor Lonnie Thompson of Ohio State University. At the same time, melting increased rapidly in the period 2015-2016 due to El Nino. This is a phenomenon that causes tropical ocean water and, as a result, the surrounding air temperature to heat up.

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The vast majority of people are right—handed. And we make this choice unconsciously. Which hand we have is the “main one” is more related to how our brain works. But what about the animals? After all, in fact, if we all belong to the class of mammals and the work of many organs is almost the same, then the structure of the brain should be similar. And therefore the general principles of its functioning too. And now we have evidence that even among dolphins there are both left-handed and right-handed people.

Dolphins, like humans, are divided into right-handed and left-handed people. There are also left-handed and right-handed dolphins. Photo.

There are also left-handed and right-handed dolphins

Are there any left-handed dolphins?
You probably have a question: if it is quite easy to identify a lefty among a person, then how to do it with a dolphin? Researchers working with the Dolphin Communication Project spent six years studying the population of bottlenose dolphins (Tursiops truncatus) and some others feeding from the ocean floor and under normal conditions, noting which way they tend to turn, and found that the animals like to keep their right eye on food.

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Now many people are talking about global warming at every opportunity. Some complain: “The heat wave in June is all global warming.” Others contradict them: “Well, it’s freezing in February, and they also talk about global warming.” Many people remember these phrases in one form or another and very often. All this is due to the fact that it is a consequence of the large-scale human impact on the atmosphere. Global warming is part of the constant changes in nature. It is replaced by the ice age and returns back. Man also exerts his influence on these processes, but it is not so strong. In general, everything is much more complicated than many people think. A person cannot “break” the planet in a hundred years of active activity. But what happens then?

What is the ice Age and when will it begin? This may be the case not only in northern cities, but also in the middle zone. Photo.

This may be the case not only in northern cities, but also in the middle zone.

The glacial period (scientific glaciation) is a periodically recurring stage in the geological history of the Earth (lasting several million years), during which there is a general relative cooling of the climate and significant overgrowth of continental glacial covers occurs.

The most famous victims of the Ice Age are dinosaurs, especially the smallest ones. Ramis Ganiev has already written about them the other day. You can’t even imagine how small they were. At this size, it is not surprising that they were dying out. Scientists are still arguing about what killed them, but this version is considered the most important.

Extinct animals were the least adapted to the conditions of climate change. Although even smaller representatives of living organisms survived it and still live with us. Among them there is a real contemporary of the ancient monsters.

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