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Every time the climate change becomes more alarming, but what is the reason for this?

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Every time the climate change becomes more alarming, but what is the reason for this?

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The causes are divided into 2 parts:
-Natural causes: They may be due to volcanic activity or causes generated by the energy received from the sun, among others.
-Anthropological causes: They are generated by man, either by the burning of fossil fuels, forest clearance, among others.
Human activity since the Industrial Revolution has mainly influenced the emission of CO2 and other greenhouse gases that have helped to amplify the natural greenhouse effect.

Publised by Laura Acuña A.

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The current warming trend is of particular significance because most of it is extremely likely (greater than 95 percent probability) to be the result of human activity since the mid-20th century and proceeding at a rate that is unprecedented over decades to millennia.

Earth-orbiting satellites and other technological advances have enabled scientists to see the big picture, collecting many different types of information about our planet and its climate on a global scale. This body of data, collected over many years, reveals the signals of a changing climate.

The heat-trapping nature of carbon dioxide and other gases was demonstrated in the mid-19th century. Their ability to affect the transfer of infrared energy through the atmosphere is the scientific basis of many instruments flown by NASA. There is no question that increased levels of greenhouse gases must cause the Earth to warm in response.

Ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers show that the Earth’s climate responds to changes in greenhouse gas levels. Ancient evidence can also be found in tree rings, ocean sediments, coral reefs, and layers of sedimentary rocks. This ancient, or paleoclimate, evidence reveals that current warming is occurring roughly ten times faster than the average rate of ice-age-recovery warming.

Published by  Rodrigo Riascos R.

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Climate Change is one of the most serious environmental problems we face today because ...The climate determines the conditions of life: the possibilities of feeding, the economic activity in general and the security of the populations. In short, it determines how ecosystems are.What is causing climate change is a reduction in the snow cover of the earth's surface which in turn reduces the reflection of solar radiation and therefore increases the warming of the earth's surface.

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Climate Change is one of the most serious environmental problems we face today because ...The climate determines the conditions of life: the possibilities of feeding, the economic activity in general and the security of the populations. In short, it determines how ecosystems are.What is causing climate change is a reduction in the snow cover of the earth's surface which in turn reduces the reflection of solar radiation and therefore increases the warming of the earth's surface.

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Published by Marcela Martinez

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Some 300 million children breathe toxic air in the world, Unicef

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Some 300 million children breathe toxic air in the world, Unicef

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Some 300 million children live in places with air pollution that causes serious physical damage, including impediments to brain development, according to a United Nations study released Monday.
One in seven children in the world breathes contaminated air, which is at least six times dirtier than established by international standards, according to the study of the United Nations Children's Fund (UNICEF), which considers pollution atmospheric as a fundamental factor in infant mortality.

Unicef published the study a week before the next round of talks on climate change, which will take place in Morocco from November 7 to 18. The agency, which promotes the rights and welfare of children, is pushing for urgent action by world leaders to reduce air pollution in their countries.

"Environmental pollution is the main factor that contributes to the annual death of some 600,000 children under the age of five, and threatens the lives and futures of millions more each day," said Anthony Lake, executive director of Unicef.

"Pollutants not only damage lung development, they can now cross the cerebral blood barrier and permanently damage their brain development and, thus, their future, there is no society that can afford to ignore air pollution," Lake added.

published by Bibiana Cuestas.