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Nerea and Mara

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The greenhouse effect. Causes and consequencies. (30-03/3-04)

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The greenhouse effect. Causes and consequencies. (30-03/3-04)

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To read and answer the questions for homework for week 2 (30-03/3-04)

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The consequences of the greenhouse effect: from desertification to floods

#environmental sustainability #nature #climate change

Human action is causing an increase in global temperature. For that reason, the greenhouse effect, far from being our great ally as was the case in the past, is now a risk to our survival. The flooding of coastal cities, the desertification of fertile areas, the melting of glacial masses and the proliferation of devastating hurricanes are just some of the main consequences.

WHAT IS THE GREENHOUSE EFFECT

The greenhouse effect is a natural phenomenon and is beneficial for us. Certain gases in the atmosphere retain part of the thermal radiation emitted by the Earth's surface after being heated by the sun, this maintains the planet's temperature at a level suitable for the development of life. Human action, however, has increased the presence of these gases in the atmosphere - mainly, carbon dioxide and methane -, causing them to retain more heat and to increase the temperature on the planet. This is what we know as global warming.

HOW THE GREENHOUSE EFFECT IS PRODUCED

SEE INFOGRAPHIC: Do you know how the greenhouse effect is produced? [PDF]
CONSEQUENCES OF THE GREENHOUSE EFFECT

The increase in the average temperature on Earth is changing living conditions on the planet. Let's find out about the main consequences of this phenomenon:

Thawing of glacial masses
Glaciers retreat also has its own consequences: reduced albedo - the percentage of solar radiation that the earth's surface reflects or returns to the atmosphere -, a global rise in sea level and the release of large methane columns are only some of them, however, they are all dramatic for the planet.

Flooding of islands and coastal cities
According to Intergovernmental Panel on Climate Change (IPCC, 2014), during the period 1901-2010 the global average sea level rose 19 centimetres. It is estimated that by 2100 the sea level will be between 15 and 90 centimetres higher than it is now and will threaten 92 million people.

Hurricanes will be more devastating
The intensification of the greenhouse effect does not cause these extreme climatic events, but it does increase there intensity. Hurricanes formation are connected with sea temperature - they only form over waters that have a temperature of at least 26.51 ºC -.

Migration of species
Many animal species will be forced to migrate in order to survive the changes in the main climatic patterns altered by the progressive increase in temperatures. Human beings will also have to move: according to the World Bank, by 2050 the number of people forced to flee their homes due to extreme droughts or violent floods could reach 140 million.

Desertification of fertile areas
Global warming is having a profound impact on the processes of soil degradation and is contributing to the desertification of areas on the planet, a phenomenon that destroys all the biological potential of affected regions, turning them into barren and unproductive land. As recognised by the UN on the occasion of the World Day to Combat Desertification in 2018, 30% of land has been degraded and lost its real value.

Impact on agriculture and livestock
Global warming has already altered the length of the growing season in large parts of the planet. Similarly, changes in temperatures and seasons are influencing the proliferation of insects, invasive weeds and diseases that can affect crops. The same is happening with livestock: climatic changes are directly affecting important species in multiple ways: reproduction, metabolism, diseases, etc.

CONSEQUENCES OF THE GREENHOUSE EFFECT ON HUMAN HEALTH

The greenhouse effect is also directly affecting human health through:

Food shortages
The United Nation's Food and Agriculture Organization (FAO) states that climate change is raising serious doubts about food availability: in its last biennial report on the state of world food and agriculture, it warns that a decline in agricultural production would result in food shortages, most severely affecting sub-Saharan Africa and South Asia.

The spread of diseases and pandemics
In addition to the problems derived directly from pollution, the World Health Organization (WHO) states that global warming will cause infectious diseases such as malaria, cholera or dengue to spread to many more areas of the planet. On the other hand, extreme heat will increase and aggravate cardiovascular and respiratory problems.

HOW TO SOLVE THE CONSEQUENCES OF THE GREENHOUSE EFFECT

Reducing emissions of the so-called greenhouse gases, such as CO ₂ or CH ₄ is not the only solution to curb the greenhouse effect. International organisations also agree on the following recommendations:

Climate action is synonymous with any policy, measure or programme that works to reduce greenhouse gases, builds resilience to climate change or supports and finances those objectives. The Paris Agreement (2015) was the first major international agreement towards those ends. At COP21, when it was signed, 174 countries and the European Union agreed to work with the goal of keeping global warming below 2°C.

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The consequences of the greenhouse effect: from desertification to floods

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Human action is causing an increase in global temperature. For that reason, the greenhouse effect, far from being our great ally as was the case in the past, is now a risk to our survival. The flooding of coastal cities, the desertification of fertile areas, the melting of glacial masses and the proliferation of devastating hurricanes are just some of the main consequences.

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On the environment / 2050 - A Documentary. 

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On the environment / 2050 - A Documentary. 

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To watch and answer the questions for homework for week 2 (30-03/03-04)
https://www.youtube.com/watch?v=Z24Dd1Tcz1Y

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Answers to homework for week 1 (23-27/03)

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Answers to homework for week 1 (23-27/03)

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Week 2. PRUEBA DE SELECTIVO. Por favor, me enviáis las repuestas a mi email en un DOCUMENTO WORD. (30-03/3-04)

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Week 2. PRUEBA DE SELECTIVO. Por favor, me enviáis las repuestas a mi email en un DOCUMENTO WORD. (30-03/3-04)

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Recordad poner nombre y apellido en la hoja.

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Week 2. Aquí tenéis unas preguntas para contestar sobre el texto de arriba: The greenhouse effect, Causes and consequencies. Y también preguntas sobre el vídeo: 2050-A Documentary. (30-03/3-04)

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Week 2. Aquí tenéis unas preguntas para contestar sobre el texto de arriba: The greenhouse effect, Causes and consequencies. Y también preguntas sobre el vídeo: 2050-A Documentary. (30-03/3-04)

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2ºbach questions on report and video week 2

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POR FAVOR, LAS RESPUESTAS AL TEXTO DE SELECTIVO ME LAS ENVIÁIS EN DOCUMENTO WORD

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POR FAVOR, LAS RESPUESTAS AL TEXTO DE SELECTIVO ME LAS ENVIÁIS EN DOCUMENTO WORD

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Week 2. Respuestas a las preguntas sobre el texto: the greenhouse effect. Causes and consequencies, y a las preguntas sobre el vídeo (30-03/03/04)

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Week 2. Respuestas a las preguntas sobre el texto: the greenhouse effect. Causes and consequencies, y a las preguntas sobre el vídeo (30-03/03/04)

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Answers to questions on report and video

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DEBER PARA SEMANA 3 (06-08/04). Para estos días que quedan tenéis que repasar las tareas que he mandado y estudiar vocabulario. El tema del medioambiente es importante y hay bastante vocabulario específico

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DEBER PARA SEMANA 3 (06-08/04). Para estos días que quedan tenéis que repasar las tareas que he mandado y estudiar vocabulario. El tema del medioambiente es importante y hay bastante vocabulario específico