Graphics Library >> Climate

Tag: Climate

CO2 concentration in the atmosphere (1959-1998)
CO2 concentrations in the atmosphere have been measured at an altitude of about 4,000 meters on the peak of Mauna Loa mountain in Hawaii since 1958. The measurements at this location, remote from local sources of polluti...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
The carbon cycle
The global carbon cycle shows the carbon reservoirs in GtC (gigatonne= one thousand million tonnes) and fluxes in GtC/year. The indicated figures are annual averages over the period 1980 to 1989. The component cycles ar...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Climate scenarios for cereal production
The figure shows change in cereals production under three different GCM equilibrium scenarios (percent from base estimated in 2060). While there are still uncertainties about whether climate change will cause global agri...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
World ocean thermohaline circulation
The global conveyor belt thermohaline circulation is driven primarily by the formation and sinking of deep water (from around 1500m to the Antarctic bottom water overlying the bottom of the ocean) in the Norwegian Sea. W...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Projected changes in CO2 and climate: assumptions in the IPCC 1992 scenarios
Projected anthropogenic CO2 emissions from fossil fuel use, deforestation and cement production are shown for some of the IPCC emission scenarios. The highest emission scenario - IS92e - assumes moderate population grow...
06 Nov 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Potential climate change impacts
If greenhouse gas concentrations keep rising, climatic changes are likely to result. Those changes will potentially have wide-ranging effects on the environment and socio-economic and related sectors, such as health, agr...
23 Feb 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Potential impact of sea level rise: Nile Delta
Rising sea level would destroy weak parts of the sand belt, which is essential for the protection of lagoons and the low-lying reclaimed lands in the Nile delta of Egypt (Mediterranean Sea). The impacts would be very ser...
17 May 2005 - by Otto Simonett, UNEP/GRID-Arendal
IPCC and UNFCCC - Institutional framework
In 1988, UNEP and WMO jointly established the Intergovernmental Panel on Climate Change (IPCC) as concern over changes in the climate became a political issue. The purpose of the IPCC was to assess the state of knowledge...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Greenhouse effect
Human activities are causing greenhouse gas levels in the atmosphere to increase. This graphic explains how solar energy is absorbed by the earth's surface, causing the earth to warm and to emit infrared radiation. The g...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Freshwater stress and risk
One study suggests that although global water conditions may worsen by 2025 due to population pressure, climate change could have a net positive impact on global water resources. NB! Note that other studies indicate tha...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Temperature and CO2 concentration in the atmosphere over the past 400 000 years
Over the last 400,000 years the Earth's climate has been unstable, with very significant temperature changes, going from a warm climate to an ice age in as rapidly as a few decades. These rapid changes suggest that clima...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Impact of Temperature Rise on Robusta Coffee in Uganda
Developing countries, whose economies often rely heavily on one or two agricultural products, are especially vulnerable to climate change. This graphic shows that with an increase of only 2 degrees Celsius, there would b...
17 May 2005 - by Otto Simonett, UNEP/GRID-Arendal
Trends in the ice-breaking date in the Tornio river, Finland
The icebreaking date for the Tornio River in Finland has been recorded since 1693. With the increased greenhouse effect, impacts on the cryosphere are likely. One impact will be less ice on rivers and lakes. Freeze-up da...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Thinning of the Arctic sea-ice
Sea-ice draft is the thickness of the part of the ice that is submerged under the sea. Comparison of sea-ice draft data acquired on submarine cruises between 1993 and 1997 with similar data acquired between 1958 and 1976...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
IPCC structure
In 1988, UNEP and WMO jointly established the Intergovernmental Panel on Climate Change (IPCC) as concern over changes in the climate became a political issue. The purpose of the IPCC was to assess the state of knowledge...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Sensitivity, adaptability and vulnerability
The potential impacts of climate change on the environment and socio-economic systems can be understood in terms of sensitivity, adaptability and vulnerability of the system, and this figure defines these terms.
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Emissions of carbon dioxide, in Africa and selected OECD countries
Africa represents only a small fraction, 3.6%, out of the total carbon dioxide (CO2) emissions per year, yet 14% of the population of the world lives here. The emissions per inhabitant in Libya, the Seychelles and South ...
02 Nov 2006 - by Hugo Ahlenius, UNEP/GRID-Arendal
Mean sea surface temperature on the Caspian Sea
Recent research by the Caspian Environment Programme estimates the number of living seals to be as low as 150,000. A further reduction in ice cover due to a warming climate could well be one of the major threats facing t...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Ice cover on the North Caspian Sea
Higher winter temperatures, possibly related to changes in global climate observed in recent years, have caused thinner ice coverage and restricted the traditional reproduction grounds of the Caspian seal in the shallow ...
29 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Caspian sea climate, mean annual temperature and precipitation
With the Caspian Sea's north-south alignment, stretching over a distance of approximately 10 degrees, the water body crosses several different climatic regions. The northernmost regions, with Russia and Kazakhstan are ch...
07 Nov 2007 - by Philippe Rekacewicz, UNEP/GRID-Arendal