Climate change
Climate Change is the defining issue of our time and we are at a defining moment. The evidence for rapid climate change is compelling.
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Climate change is already impacting human health.
. From shifting weather patterns that threaten food production to rising sea levels that increase the risk of. As ocean temperatures rise hurricanes are getting stronger and wetter which can cause direct and indirect deaths. 4 Most of the warming occurred in the past 40 years.
Since the Industrial Revolution human activities have released large amounts of carbon dioxide and other greenhouse gases into the atmosphere which has changed the earths climate. The atmosphere is a dynamic fluid that is continually in motion. Climate change periodic modification of Earths climate brought about as a result of changes in the atmosphere as well as interactions between the atmosphere and various other geologic chemical biological and geographic factors within the Earth system.
Climate change could refer to a particular location or the planet as a whole. Understanding and addressing climate change is critical to EPAs mission of protecting human health and the environment. Climate change is the result of the buildup of greenhouse gases in the atmosphere primarily from the burning of fossil fuels for energy and other human activities.
Natural processes such as changes in the suns energy and volcanic eruptions also affect the earths climate. Climate change is the long-term alteration of temperature and typical weather patterns in a place. Climate change refers to long-term shifts in temperatures and weather patterns.
The Fourth National Climate Assessment NCA4. Climate change has occurred many times in Earths history and for many different reasons. But since the 1800s human activities.
The last spring frost is occurring earlier in many places affecting when and how plants grow. 101 C since 1880 Arctic Sea Ice Extent 130 percent per decade since 1979 Ice Sheets 427 billion metric tons per year since 2002 Sea Level 34 millimeters per year since 1993 Ocean Heat Added 337 zettajoules since 1955 Carbon Dioxide 418 parts per million current Global Temperature 101 C since 1880 Arctic Sea Ice Extent 130. Global climate change has already resulted in a wide range of impacts across every region of the country and many sectors of the economy that are expected to grow in the coming decades.
Earths climate is now changing faster than at any point in the history of modern civilization primarily as a result of human activities. Climate change refers to a statistically defined change in the average andor variability of the climate system this includes the atmosphere the water cycle the land surface ice and the living. Changes in weather and climate patterns can put lives at risk.
Climate change describes a change in the average conditions such as temperature and rainfall in a region over a long period of time. For example 20000 years ago much of the United States was covered in glaciers. Climate change is any long-term alteration in average weather patterns either globally or regionally.
Heat is one of the most deadly weather phenomena. In the United States today we have a warmer climate and fewer glaciers. EPA tracks and reports greenhouse gas emissions leverages sound science and works to reduce emissions to combat climate change.
Global Temperature Rise The planets average surface temperature has risen about 2 degrees Fahrenheit 1 degrees Celsius since the late 19th century a change driven largely by increased carbon dioxide emissions into the atmosphere and other human activities. C limate change may cause weather patterns to be less predictable. Dry conditions lead to more wildfires which bring many health risks.
These shifts may be natural such as through variations in the solar cycle. The roughly 2-degree Fahrenheit 1 degrees Celsius increase in global average surface temperature that has occurred since the pre-industrial era 1880-1900 might seem small but it means a significant increase in accumulated heat. These gases such as carbon dioxide and methane warm and alter the global climate which causes environmental changes to occur that can harm peoples health and well-being.
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