causes and effect of climate change pdf

Causes And Effect Of Climate Change Pdf

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Climate change, also called global warming, refers to the rise in average surface temperatures on Earth.

Climate change is a global challenge that has no borders and to combat it requires coordinated work by all countries. In these pages, we tackle the subject from an objective, scientific viewpoint , discussing the causes and consequences of climate change and how it should be tackled. One of the MOST amazing video's and explinations on climate change.

What is climate change and how does it affect us?

Climate change is a global challenge that has no borders and to combat it requires coordinated work by all countries. In these pages, we tackle the subject from an objective, scientific viewpoint , discussing the causes and consequences of climate change and how it should be tackled. One of the MOST amazing video's and explinations on climate change. The main cause of climate change is global warming, which has many negative consequences on physical, biological and human systems, as well as other effects.

Carbon dioxide, Methane, Nitrogen oxide, HCFCs : caused mainly by the burning of fossil fuels in electricity generation, transport, heating, industry and construction. Also caused by livestock, agriculture mainly rice farming , wastewater treatment and landfills among others.

The forests and rainforests are disappearing at breakneck speed. In the past 10 years, they have destroyed no less than 13 million hectares. Human population is growing exponentially. Today, barely years later, we are more than 7. An increasingly numerous population needs more and more resources, which speeds up the increase in greenhouse gas emissions from all production processes.

From then onward, population growth in , there were fewer than million people on Earth, whereas now we are over 7. Watch this video to find out how we are influencing the greenhouse effect and what we can do to prevent further harm. For the last two hundred years humankind has caused such a negative footprint on the environment that some scientists describe it as a new geological age: the age of human impact on Earth or the Anthropocene.

Variations in life conditions in natural environments cause death, disease and massive migrations of species. Heat causes the melting of the ice at the poles, which increases the sea level and threatens to submerge coastal communities and small island states. Hurricanes, cyclones, typhoons, drought, floods, rain and snow, all increase in their degree of violence due to global warming, causing more deaths, victims, refugees and material damage. Changes in ecosystems and desertification cause the death of between 10, and 50, species every year.

The existence of climate refugees, still to be recognized by the United Nations, is a reality; it is estimated their number could reach one billion by Support the generation of development opportunities through inclusive education and decent work. Foster innovation and resilient infrastructure, creating communities and cities able to produce and consume sustainably. Care for the environment combating climate change and protecting the oceans and land ecosystems. Promote collaboration between different social agents to create an environment of peace and sustainable development.

Causes of climate change

Global warming , the phenomenon of increasing average air temperatures near the surface of Earth over the past one to two centuries. Increases in greenhouse gases —i. Continued global warming is expected to impact everything from energy use to water availability to crop productivity throughout the world. Poor countries and communities with limited abilities to adapt to these changes are expected to suffer disproportionately. Global warming is already being associated with increases in the incidence of severe and extreme weather, heavy flooding , and wildfires —phenomena that threaten homes, dams, transportation networks, and other facets of human infrastructure.

This study reviews the causes and effects of climate change on agriculture in Africa. The main interests are findings concerning the present and potential impacts.

Global Warming 101

Human activity is the main cause of climate change. People burn fossil fuels and convert land from forests to agriculture. Since the beginning of the Industrial Revolution, people have burned more and more fossil fuels and changed vast areas of land from forests to farmland. Burning fossil fuels produces carbon dioxide, a greenhouse gas. The greenhouse effect makes the earth warmer, just as a greenhouse is warmer than its surroundings.

Not a MyNAP member yet? Register for a free account to start saving and receiving special member only perks. Climate change poses significant risks for a wide range of human and natural systems. Although the scientific process is always open to new ideas and results, the fundamental causes and consequences of climate change have been established by many years of scientific research, 1 are supported by many different lines of evidence, and have stood firm in the face of careful examination, repeated testing, and the rigorous evaluation of alternative theories and explanations. This chapter provides a brief overview of some basic facts about the risks posed by climate change see Box 2.

What is climate change? The definition, causes and effects

What is climate change? Is it the same as global warming? What are its main causes and consequences? Is it a lie? Find everything about climate change bel ow! Climate change is the global phenomenon of climate transformation characterized by the changes in the usual climate of the planet regarding temperature, precipitation, and wind that are especially caused by human activities. In fact, they say that global warming refers to the rise in global temperatures due mainly to the increasing concentrations of greenhouse gases in the atmosphere.

Jump to navigation. And yes, it's really happening. Over the past 50 years, the average global temperature has increased at the fastest rate in recorded history. And scientists say that unless we curb global-warming emissions, average U. Normally, this radiation would escape into space—but these pollutants, which can last for years to centuries in the atmosphere, trap the heat and cause the planet to get hotter. That's what's known as the greenhouse effect.

The evidence is clear: the main cause of climate change is burning fossil fuels such as oil, gas, and coal. When burnt, fossil fuels release carbon dioxide into the air, causing the planet to heat up. The climate on Earth has been changing since it formed 4. Until recently, natural factors have been the cause of these changes. Natural influences on the climate include volcanic eruptions, changes in the orbit of the Earth, and shifts in the Earth's crust known as plate tectonics. Over the past one million years, the Earth has experienced a series of ice-ages 'glacial periods' and warmer periods 'interglacial'. Glacial and interglacial periods cycle roughly every , years, caused by changes in Earth's orbit around the sun.

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This site uses cookies to improve your experience and deliver personalised advertising. You can opt out at any time or find out more by reading our cookie policy. Climate change is the catch-all term for the shift in worldwide weather phenomena associated with an increase in global average temperatures. It's real and temperatures have been going up around the world for many decades. Reliable temperature records began in and our world is now about one degree Celcius hotter than it was in the period between and — commonly referred to as the "pre-industrial" average.

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Some scientists predict that we only have 8 months to act or it will be too late.


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