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What causes global climate change?

This project is funded by the National Oceanic and Atmospheric Administration (NOAA) under grant #NA16GP2576. For more information about CCIR visit CIESIN User Services: 1 (845) 365-8988 8922 Copyright 2004-2005. The Trustees of Columbia University in the City of New PointsThere is a scientific consensus that concentrations of greenhouse gases in the atmosphere are increasing and that this is causing global climate change . Human-driven emissions of carbon dioxide and other greenhouse gases, as well as land-use change , are the processes primarily responsible for the increase. Emissions of black carbon (soot) may also be contributing to the warming. Emissions of reflective sulfate aerosols have been associated with a net cool-ing effect . Defining Weather and ClimateWeather is the state of the atmosphere at a specific time in a specific place.

the greenhouse effect. Methane (CH 4), nitrous oxide (N 2 O), chloro-fluorocarbons (CFCs) and other greenhouse gases are present only in trace amounts, but can still have a powerful warming effect due to their heat-trapping abilities and their long residence time in the atmosphere. Without the greenhouse effect, Earth’s aver-

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Transcription of What causes global climate change?

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Examples of Natural Climate Phenomena

www.weather.gov

ozone, and several other gases also contribute to the greenhouse effect. Adding more greenhouse gases, such as CO 2, to the atmosphere intensifies the greenhouse effect. The Greenhouse Effect is necessary for life on Earth, as we know it, to survive. The effect is enhanced by human activities, such as the burning of fossil fuels.

  Human, Climate, Greenhouse, Natural, Effect, Greenhouse effect, Natural climate

Specification for the assessment of the life cycle ...

www.carbonconstruct.com

2) and other greenhouse gases through human activities such as the burning of fossil fuels, emissions from chemical processes, and other sources of anthropogenic greenhouse gases, will have an effect on future global climate. While greenhouse gas (GHG) emissions are often viewed at global, national, corporate or organizational

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UNITED NATIONS FRAMEWORK CONVENTION ON CLIMATE …

unfccc.int

Concerned that human activities have been substantially increasing the atmospheric concentrations of greenhouse gases, that these increases enhance the natural greenhouse effect, and that this will result on average in an additional warming of the Earth’s surface and atmosphere and may adversely affect natural ecosystems and humankind,

  Human, Climate, Greenhouse, Effect, Greenhouse effect

United Nations Framework Convention on Climate Change

unfccc.int

result of human activity, that the phenomenon will have devastating effects if left unchecked and that cost of action on climate change are significantly lower than the costs of inaction. Following a review by the InterAcademy Council (IAC), the IPCC has announced that it will strengthen a number of its processes and procedures.

  Change, Activity, Human, Climate, Climate change, Human activity

TEACHER BACKGROUND: NATURAL CLIMATE CHANGE

gml.noaa.gov

the warming caused by volcanic greenhouse gases – the eruption of Mount Pinatubo in 1991 caused a 0.5 °C drop in global temperature. Volcanic eruptions spew out lava, carbon dioxide (CO 2) ash and particles. Although CO 2 has a warming effect, average volcanic CO 2 emissions are less than 1% of emissions from current human activities.

  Human, Greenhouse, Effect

A Catholic Perspective on Climate Change

www.crs.org

warming effect. The foregoing arguments are consistent with those made by Pope Francis in Laudato si’. The Earth is warming, and it is due to human activity. An atmospheric CO 2 concentration of 450 ppm represents a threshold beyond which an increase in the earth’s average surface temperature would eventually exceed 2°C (3.6°F).

  Activity, Human, Effect, Human activity

LESSON PLAN: GLOBAL WARMING - PBS

www-tc.pbs.org

Form definitions of the greenhouse effect based on prior knowledge, class discussion, and viewing diagrams. 2. Participate in group brainstorming sessions and class discussions related to the impact of the greenhouse effect and global warming. 3. Analyze global warming diagrams and resources to obtain a clear understanding of this scientific ...

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Climate Change Inquiry Labs - Teacher Guide

gpm.nasa.gov

incoming solar radiation or volcanic activity). Examples of evidence can include tables, graphs, and maps of global and regional temperatures, atmospheric levels of gases such as carbon dioxide and methane, and the rates of human activities. Emphasis is on the major role that human activities play in causing the rise in global temperatures.]

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