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The Earth’s Greenhouse Effect

The Earth’s Greenhouse Effect: Most of the heat energy emitted from the surface is absorbed by greenhouse gases which radiate heat back down to warm the lower atmosphere and the surface. Increasing the concentrations of greenhouse gases increases the warming of the surface and slows the loss of heat energy to space.

Earth Greenhouse Effect

Source: ACIA Impacts of a Warming Arctic: Arctic Climate Impact Assessment  (2004),
 Context: Global Climate Change, p.2

Related publication:
Arctic Climate Change homeArctic Climate Change
Other Figures & Tables on this publication:

The Earth’s Greenhouse Effect

Observed Arctic Temperature, 1900 to Present

Observed sea ice September 1979 and September 2003

Surface Reflectivity

Projected Vegetation, 2090-2100

Arctic Marine Food Web

Map subregions sub-I

Map subregions sub-II

Map subregions sub-III

Map subregions sub-IV

Arctic Thermohaline Circulation

Carbon cycle in the Arctic

Projected Arctic Surface Air Temperatures

Freshwater food web

Projected opening of northern navigation routes

Factors influencing UV at the surface

1000 years of changes in carbon emissions

People of the Arctic

Projected Surface Air Temperature change 1990-2090

Melt of the Greenland Ice Sheet

An ice primer

Spruce Bark Beetle

Spruce Budworm

Peary Caribou

The Porcupine Caribou Herd

The Gwich’in and the Porcupine Caribou Herd

A permafrost primer

Seals Become Elusive for Inuit in Nunavut

Observed Climate Change Impacts in Sachs Harbour, Canada

Indigenous knowledge and observations of current trends

Case study of interacting changes: Saami reindeer herders

Indigenous knowledge and observations of current trends

Indigenous knowledge and observations of current trends

Indigenous knowledge and observations of current trends

Footnotes