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Thursday, May 7, 2020 | History

7 edition of Global change research: Indicators of global warming and solar variability found in the catalog.

Global change research: Indicators of global warming and solar variability

hearing before the Committee on Commerce, Science, and Transportation, United ... second session, February 27, 1992 (S. hrg)

by United States

  • 65 Want to read
  • 15 Currently reading

Published by For sale by the U.S. G.P.O., Supt. of Docs., Congressional Sales Office .
Written in English


The Physical Object
Number of Pages74
ID Numbers
Open LibraryOL7369291M
ISBN 100160398576
ISBN 109780160398575
OCLC/WorldCa27940526

  Solar Variability Most Likely Not the Cause of Global Warming The gradual increase in global temperatures is getting harder and harder to pin on the Sun and its energy output variability. Changing the type of vegetation in a region impacts the local temperature by changing how much sunlight gets reflected back into space, called albedo, and how much heat is lost by evaporation. For instance, the change from a dark forestto grassland makes the surface lighter, causing it .

  Several studies in recent years have looked at the effects that another grand minimum might have on global surface temperatures. 2 These studies have suggested that while a grand minimum might cool the planet as much as degrees C, this would, at best, slow down (but not reverse) human-caused global warming. There would be a small decline of. Despite the unequivocal signs of global warming, some public (and to a much lesser extent, scientific) debate has arisen over discrepancies between the different global temperature records, and over the exact magnitude of, and possible recent changes in, warming rates (Peterson and Baringer ). To clarify these issues, we analyze the five.

› en español. Scientists attribute the global warming trend observed since the mid th century to the human expansion of the "greenhouse effect" 1 — warming that results when the atmosphere traps heat radiating from Earth toward space.. Certain gases in the atmosphere block heat from escaping. Long-lived gases that remain semi-permanently in the atmosphere and do not respond physically. Global warming - Global warming - Climatic variation since the last glaciation: Global warming is related to the more general phenomenon of climate change, which refers to changes in the totality of attributes that define climate. In addition to changes in air temperature, climate change involves changes to precipitation patterns, winds, ocean currents, and other measures of Earth’s climate.


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Global change research: Indicators of global warming and solar variability by United States Download PDF EPUB FB2

Global change research: indicators of global warming and solar variability: hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Second Congress, second session, Febru Our Globally Changing Climate 1 U.S.

Global Change Research Program Climate Science Special Report KEY FINDINGS 1. The global climate continues to change rapidly compared to the pace of the natural variations in cli-mate that have occurred throughout Earth’s history. Trends in globally averaged temperature, sea levelFile Size: 1MB.

Whilst there is now overwhelming evidence that greenhouse-gas pollution is becoming the dominant process responsible for global warming, it is also clear that the climate system varies quite naturally on different time-scales. Predicting the course of future climate change consequently requires an understanding of the natural variability of the climate system as well as the effects of human-induced change.

Explore vital signs of global climate change and global warming, such as Carbon Dioxide, Global Temperature, and Arctic Sea Ice Minimum. National Phenology Network This award-winning network collects, stores, and shares seasonal natural phenomena and cyclical data and information.

However, while global climate has undoubtedly warmed during the recent past, and human activity has been a major factor in this change, the role of ice sheets as indicators of climate change and as influential components in the planets climate engine, is a complex one.

gases (GHGs) and global warming at a potentially huge cost to the economy and society worldwide. Therefore, addressing climate change requires an “unprecedented level of cooperation, not only between countries, but also between different levels of Governments, private sector and individu- als.

Keywords Global; Climate Change 1. Introduction. A critical and perhaps the dominant global environmental problem in the last three decades is global warming, resulting from global climate change (Scholz and Hasse, ).

'Global warming' is a phrase that refers to the effect on the climate of human activities, in particular the burning of fossil fuels (coal, oil and gas) and large-scale deforestation, which cause.

Change in the amount of energy emitted by the Sun is a prime candidate as a cause of climate variability. And there is no doubt that on the longest timescales of Earth's geological history, trends in solar output have played a major role in shaping the Earth's climate –.

climate change. In the current epoch, solar variation impacts on regional climate appear to be quite significant in, for example, Europe in winter, but as have records of some other indicators of solar activity, such as ed to global warming, mainly during the first half of the twentieth century.

The effect is, however, estimated to be. Global warming - Global warming - Climate research: Modern research into climatic variation and change is based on a variety of empirical and theoretical lines of inquiry.

One line of inquiry is the analysis of data that record changes in atmosphere, oceans, and climate from roughly to the present. In a second line of inquiry, information describing paleoclimatic changes is gathered from.

Making explicit linear hypothesis: (12) y = X 1 + X 2 + X 3 + v where y is the observed global temperature, X i the fingerprints associated with each indicator of forcing (e.g., human, solar and volcanic activities), and v results from internal variability or from any unlisted causes.

Understanding solar influences on climate requires the interaction of two primary research areas that are currently quite distinct: the monitoring and assessment of solar irradiance variations, which is reviewed first in this chapter, and the perspective of solar variability and climate from both the paleoclimate record and for future global.

Global climate is changing and this is apparent across the United States in a wide range of observations. The global warming of the past 50 years is primarily due to. Global Climate Monitor: Global Climate Monitoring of the Climate System allows a clear overview of how the system is currently behaving in response to global warming and natural variation.

Climate change indicators: Global Mean Temperature (GMT); Hemispheric Temperature Variance; Greenhouse gases; Arctic, Antarctic Ice Extent and Volume; Ocean Oscillations; Sea Level Rise (SLR); Solar. 2 | Physical Drivers of Climate Change U.S.

Global Change Research rogram 76 Climate Science Special Report −°F (−°C) and °F (°C) to changes in surface temperatures from to ; by comparison, anthropogenic GHGs have likely contributed between °F (°C) and °F (°C) to observed surface warming over this.

The Development of Research on Local Indicators of Climate Change. The literature on local indicators of climate change has expanded rapidly sinceyear when our search located the first article The increase has been exponential afterwith as much as 80 documents on the topic (36%) being published during (Figure 1.

This report is an authoritative assessment of the science of climate change, with a focus on the United States. It represents the second of two volumes of the Fourth National Climate Assessment, mandated by the Global Change Research Act of Evidence-Based Climate Science: Data opposing CO 2 emissions as the primary source of global warming objectively gathers and analyzes scientific data concerning patterns of past climate changes, influences of changes in ocean temperatures, the effect of solar variation on global.

Read NCA4 Vol. II: Impacts, Risks, and Adaptation in the United States, USGCRP’s quadrennial assessment of the impacts of climate change in the U.S. Explore NCA4 Learn about the report 2nd State of the Carbon Cycle Report. According to the third U.S. National Climate Assessment, “Global climate is changing and this is apparent across the United States in a wide range of global warming of the past 50 years is primarily due to human activities, predominantly the burning of fossil fuels.” Mandated at least every four years by the Global Change Research Act ofthe U.S.

National Climate.The National Climate Assessment summarizes the impacts of climate change on the United States, now and in the future. A team of more than experts guided by a member Federal Advisory Committee produced the report, which was extensively reviewed by the public and experts, including federal agencies and a panel of the National Academy of.

The U.S. Global Change Research Program (USGCRP) has released its latest doomsday climate organization, part of the federal government, has been in business for a long time, releasing.