Causes and effects of global warming and climate change pdf
File Name: causes and effects of global warming and climate change .zip
- Study of Impacts of Global Warming on Climate Change: Rise in Sea Level and Disaster Frequency
- What causes the Earth's climate to change?
- Effects of climate change on humans
What is climate change? Is it the same as global warming?
Study of Impacts of Global Warming on Climate Change: Rise in Sea Level and Disaster Frequency
The effects of climate change on humans are far reaching and include effects on health, environment, displacement and migration , security, society, human settlement , energy, and transport. Climate change has brought about possibly irreversible alterations to Earth's geological, biological, and ecological systems. A growing body of research explores the many impacts of climate change on human health, food supply, economic growth , migration , security, societal change, and public goods , such as drinking water. The consequences of these changes can help or hurt local human populations. For example, climatic changes in Siberia are expected to improve food production and local economic activity in the short to medium term. However, Bangladesh has experienced an increase in climate-sensitive diseases; such as malaria, dengue, childhood diarrhea, and pneumonia, among vulnerable communities.
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.
What causes the Earth's climate to change?
Climate change, also called global warming, refers to the rise in average surface temperatures on Earth. An overwhelming scientific consensus maintains that climate change is due primarily to the human use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the air. The gases trap heat within the atmosphere, which can have a range of effects on ecosystems, including rising sea levels, severe weather events, and droughts that render landscapes more susceptible to wildfires. There is broad-based agreement within the scientific community that climate change is real. The U. Environmental Protection Agency, the National Aeronautics and Space Administration, and the National Oceanic and Atmospheric Administration concur that climate change is indeed occurring and is almost certainly due to human activity.
During the course of global warming, the energy balance and thus the temperature of the earth change, due to the increased concentration of greenhouse gases, which has a significant impact on humans and the environment. It is not scientifically possible to assign individual weather events to the current climate change, however, it can be statistically proven that global warming will increase the probability of extreme weather events. The indirect consequences of climate change, which directly affect us humans and our environment, include:. As the global climate is a highly interconnected system that is influenced by many different factors, the consequences usually result in positive or negative feedback effects. This refers to developments that are self-enhancing due to the occurrence of certain conditions. A common example is the ice-albedo feedback, which refers to the melting of the polar caps.
The effects of climate change span the physical environment , ecosystems and human societies. It also includes the economic and social changes which stem from living in a warmer world. Human-caused climate change is one of the threats to sustainability. Many physical impacts of climate change are already visible, including extreme weather events, glacier retreat ,  changes in the timing of seasonal events e. Climate change has already impacted ecosystems and humans.
Effects of climate change on humans
Global Warming - Impacts and Future Perspective. Global warming and climate change refer to an increase in average global temperatures. Natural events and human activities are believed to be main contributors to such increases in average global temperatures. The climate change, caused by rising emissions of carbon dioxide from vehicles, factories and power stations, will not only effects the atmosphere and the sea but also will alter the geology of the Earth. Emissions of carbon dioxide due to our use of fossil energy will change the climate and the temperature is estimated to increase by 2 to 6 o Celsius within year , which is a tremendous increase from our current average temperature of 1.
The potential future effects of global climate change include more frequent wildfires, longer periods of drought in some regions and an increase in the number, duration and intensity of tropical storms. Global climate change has already had observable effects on the environment. Glaciers have shrunk, ice on rivers and lakes is breaking up earlier, plant and animal ranges have shifted and trees are flowering sooner. Effects that scientists had predicted in the past would result from global climate change are now occurring: loss of sea ice, accelerated sea level rise and longer, more intense heat waves. Scientists have high confidence that global temperatures will continue to rise for decades to come, largely due to greenhouse gases produced by human activities.
Not a MyNAP member yet? Register for a free account to start saving and receiving special member only perks. Research has also evaluated actions that could be taken—and in some cases are already being taken—to limit the magnitude of future climate change and adapt to its impacts.
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.
NASA is a world leader in climate studies and Earth science. While its role is not to set climate policy or prescribe particular responses or solutions to climate change, its purview does include providing the robust scientific data needed to understand climate change. NASA then makes this information available to the global community — the public, policy- and decision-makers and scientific and planning agencies around the world. Climate change is one of the most complex issues facing us today. It involves many dimensions — science, economics, society, politics and moral and ethical questions — and is a global problem, felt on local scales, that will be around for decades and centuries to come.
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. Temperature increases related to global warming have been the most pronounced at the poles, where they often make the difference between frozen and melted ice. Polar bears rely on small gaps in the ice to hunt their prey.
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