Brazil on its knees due to drought. Water levels in reservoirs have dropped by 30%, reducing agriculture to the limit of survival. Considering that the rains have been few since February. Almost nil. From hydroelectric power, Brazil derives 60% of its electricity.
The drought in Brazil, experts predict, is expected to last between 18 and 24 months. And in the future it could recur more and more often as a problem. The cause is obviously the climate crisis. The National Agency for Water and Sanitation has officially declared a critical shortage of water resources between now and November for the Parana River basin.
The national electricity agency has already imposed an additional tax on consumption. The drought in Brazil is mainly affecting agricultural states. A sector destined for a slow and painful end.
Melting ice could release unknown pathogens
Melting ice could release unknown pathogens.
The cause of global warming is the increase in ever-increasing emissions in the earth's atmosphere of particular gases responsible for the greenhouse effect, called greenhouse gases, of mainly anthropogenic origin. Glaciers, during their formation, can trap microorganisms inside them, freezing them.
If a layer of ice has recently been created, we will find more recent organisms trapped inside, while in a layer of ancient formation we will find ancient microorganisms. The melting ice can then release the microbes that have previously hibernated there, however, the mere water that is formed is not a favorable survival environment for many species.
Many organisms are more likely to survive hibernating in permafrost. The microorganisms frozen in the soil are in the absence of oxygen and in the dark, a perfect environment for their preservation, and being the composition of the permafrost different depending on the area of formation, it is possible to have a wide range of soils suitable for the survival of different organisms.
In the Arctic ice there are not only organisms that have remained frozen, despite the extreme temperatures and conditions it is still possible to find those who manage to survive. In the local microbial fauna it is possible to find some viruses and bacteria.
Many of these microbes are extremophiles, due to their ability to live in extreme environments, such as Arctic ice or volcanic waters. Fortunately, it is almost impossible that microbes suitable for living in such conditions could also be pathogens.
These viruses, so called because they are visible under a normal optical microscope, date back to about 30,000 years ago and seem to have an unusual resistance. In fact, the species found have returned to active infectious agents, luckily their target is only the amoebas.
Although there is no concrete proof today, there is a fear of the appearance of some ancient virus, perhaps of the first hominids able to awaken from the ice.