GLOBAL WARMING, A PROBLEM OF EVERYTHING. KNOW AND ACT SOON.

THIS IS A THEME THAT WE KNOW, BUT FEW ARE THE THINGS THAT DO SOMETHING ABOUT IT. WE NEED TO THINK LESS AND ACT ONCE, THE EARTH NEED MORE OF US.

Deepen the topic, learn more about global warming and contribute ideas and collaborations to prevent this from continuing.

Global warming is the increase of the temperature of the process of the average of the oceans and the atmosphere of the Earth caused by massive emissions that enhance the greenhouse effect, originated from a series of human activities, especially the burning of fuels fossils and changes in land use, such as deforestation, as well as several other secondary sources.

These causes are a direct product of population explosion, economic growth, the use of technologies and energy sources, pollution and an unsustainable lifestyle, in which nature is seen as a raw material for exploitation.

The main greenhouse gases emitted by humans are carbon dioxide (or carbon dioxide, CO 2) and methane (CH 4). These and other gases act by blocking the Earth's heat dissipation for space.

The increase in temperature has occurred since the second half of the nineteenth century and should continue while emissions remain high.

Decline in Arctic sea ice is one of the clearest signs of global warming. The animation shows the reduction between 1979 and 2010.

The increase of the global temperature and the new composition of the atmosphere cause important changes in practically all the systems and the natural cycles of the Earth.

Affect the seas, causing the elevation of their level and changes in ocean currents and the chemical composition of water, verification of acidification, desalination and deoxygenation. Interfere with the rhythm of the seasons and the cycles of water, carbon, nitrogen and other compounds.

Cause the melting of polar ice caps of frozen soil in cold regions (permafrost) and mountain glaciers, changing ecosystems and reducing the availability of drinking water. It will irregularly affect wind and rain patterns, producing a trend towards desertification of tropical forest regions, floods and more severe and more frequent droughts, and tend to increase the frequency and intensity of storms and other extreme weather events such as heat and cold waves.

Global warming

The changes caused by global warming in the biological, chemical and physical systems in the world are enormous, some are long-term and others are irreversible, and are already causing a great geographical redistribution of biodiversity, leading to the decline of the population of many species, modifying and disrupting large-scale ecosystems, and consequently generating serious problems for food production, water supply and the production of various goods for the benefit of humanity that depend on the stability of climate and integrity of biodiversity.

These effects are closely related to each other, influence each other amplifying their negative impacts and the production of new factors for the intensification of global warming. Warming and its consequences will be different from region to region, and the Arctic is the region that is warming the fastest.

The nature and extent of these regional variations are still difficult to predict with accuracy, but it is known that no region of the world will save changes. Many will be penalized to a large extent, especially the poorest and with the least resources for adaptation.

Even if greenhouse gas emissions cease immediately, the temperature will continue to rise for a few more decades, as the effect of the gas is slow to fully manifest on a global scale and will remain active for a long time. It is clear that a drastic reduction of emissions will not occur immediately, so you will have to adapt to the inevitable consequences of warming.

Given that the consequences will be more serious than the greater greenhouse gas emissions, it is important to start reducing these emissions as soon as possible in order to minimize the impact of this and future generations.

The UN publishes a periodic report summarizing studies on global warming around the world, through the Intergovernmental Panel on Climate Change (IPCC). These studies have, for practical purposes, a time interval until the year 2100.

However, we know that warming and its consequences will continue for centuries ahead, and some of the most serious consequences will be irreversible within the horizons of today's civilization.

The general working governments of the world today to avoid an average temperature increase above 1.5 ° C, considered the maximum tolerable before producing global effects on the catastrophic scale.

An increase of 3.5 ° C scenario of the International Union for the Conservation of Nature (IUCN) predicts the probable extinction of up to 70% of all species currently existing.

If the elevation exceeds 4 ° C, which is not ruled out, and every day seems to be more plausible, we can foresee doubtful environmental changes throughout the planet on the scale that will inevitably endanger most of all life in Earth.

In a context of continuous high emissions, human overpopulation and the unbridled exploitation of nature, similar to what is already under way, the unavoidable depletion of large natural resources and a rapid increase in natural resources are expected for the near future. incidence of hunger, epidemics and violent conflicts such as to disrupt all productive and social systems, making ungovernable nations and enact the collapse of civilization as we know it.

Taking into account the future beyond the 2100 threshold, admitting those that ignite all known reserves of fossil fuels, continents emerges up to 20 ° C, the elimination of grain production in almost all agricultural areas of the world and the creation of planet practically uninhabitable.

Although the press still feeds many controversies, often misinformed, biased or distorted, and there is great political and economic pressure to deny or minimize the strong evidence that has already been gathered, the practically unanimous consensus among climatologists is that global warming It is occurring unequivocally, and it needs to be contained with energetic measures without any delay, because the risks of inaction, from all angles, are too high.

However, intergovernmental negotiations have not been very fruitful, progress in mitigation and adaptation actions has been very slow and poor, and society in general is reluctant to change their irrational lifestyle acceptance of the firm conclusions of science , proven by a large mass of qualified studies.

The result is that emissions have grown continuously, with no signs that it will substantially reduce in the near future. At the same time, the concrete evidence of global warming and its consequences have increased from year to year.

The necessary means to avoid the realization of the most pessimistic forecasts already existing, such as the use of clean energy, reduction in consumption levels, reforestation, recycling of materials and waste, and must be generalized immediately and aggressively, which if not , forecasts inevitably materialize.