Snow cover over northern hemisphere lands between 1972 and 1996 for different seasons Values are determined from analyses of NOAA snow charts created using visible satellite imagery

Snow cover over northern hemisphere lands between 1972 and 1996 for different seasons Values are determined from analyses of NOAA snow charts created using visible satellite imagery
Snow cover over northern hemisphere lands between 1972 and 1996 for different seasons Values are determined from analyses of NOAA snow charts created using visible satellite imagery

History of temperature changes in central Greenland over the last 40 000 years, from the GISP2 core, showing very large and probably abrupt changes

History of temperature changes in central Greenland over the last 40 000 years, from the GISP2 core, showing very large and probably abrupt changes
History of temperature changes in central Greenland over the last 40 000 years, from the GISP2 core, showing very large and probably abrupt changes

History of snow accumulation in central Greenland during the most recent glaciation, as measured in the GISP2 core The 25-year running mean, represented in all panels, shows very large and rapid climate changes

History of snow accumulation in central Greenland during the most recent glaciation, as measured in the GISP2 core The 25-year running mean, represented in all panels, shows very large and rapid [..]
History of snow accumulation in central Greenland during the most recent glaciation, as measured in the GISP2 core The 25-year running mean, represented in all panels, shows very large and rapid climate changes

Trends in (annual average) ozone mixing ratio over Canada from 1980 to 1993

Trends in (annual average) ozone mixing ratio over Canada from 1980 to 1993
Trends in (annual average) ozone mixing ratio over Canada from 1980 to 1993

Body burdens of radiocaesium (yearly averages) across the Canadian Arctic

Body burdens of radiocaesium (yearly averages) across the Canadian Arctic
Body burdens of radiocaesium (yearly averages) across the Canadian Arctic

Changes with time in 137Cs contamination in the food chain lichen - reindeer - humans

Changes with time in 137Cs contamination in the food chain lichen - reindeer - humans
Changes with time in 137Cs contamination in the food chain lichen - reindeer - humans

Temporal variation in calculated reindeer Tag values for different Arctic regions

Temporal variation in calculated reindeer Tag values for different Arctic regions
Temporal variation in calculated reindeer Tag values for different Arctic regions

Temporal variation in cow milk Tag values for Sweden, Norway and Finland

Temporal variation in cow milk Tag values for Sweden, Norway and Finland
Temporal variation in cow milk Tag values for Sweden, Norway and Finland

Temporal trends in OC levels (ng/g lw) in reindeer from Abisko, Sweden Levels are usually based on a pool of 10 samples

Temporal trends in OC levels (ng/g lw) in reindeer from Abisko, Sweden Levels are usually based on a pool of 10 samples
Temporal trends in OC levels (ng/g lw) in reindeer from Abisko, Sweden Levels are usually based on a pool of 10 samples

Deposition of PCBs, as mono/di/trichloro- and tetra-nonachlorobiphenyls) in snow cores from the Agassiz Ice Cap (northern Ellesmere Island, Canada) Combined light and dark shaded sections of each bar indicate sum-PCB flux

Deposition of PCBs, as mono/di/trichloro- and tetra-nonachlorobiphenyls) in snow cores from the Agassiz Ice Cap (northern Ellesmere Island, Canada) Combined light and dark shaded sections of each bar [..]
Deposition of PCBs, as mono/di/trichloro- and tetra-nonachlorobiphenyls) in snow cores from the Agassiz Ice Cap (northern Ellesmere Island, Canada) Combined light and dark shaded sections of each bar indicate sum-PCB flux

Temporal trends in concentrations of sum-HCH and toxaphene in Arctic air

Temporal trends in concentrations of sum-HCH and toxaphene in Arctic air
Temporal trends in concentrations of sum-HCH and toxaphene in Arctic air

Temporal trends in PCB and DDT levels (µg/g lw ± 95% confidence limits) of otter muscle in Sweden Levels are based on means of 26, 16, and 28 samples (northern Sweden) and 29, 9, and 15 samples (southern Sweden)

Temporal trends in PCB and DDT levels (µg/g lw ± 95% confidence limits) of otter muscle in Sweden Levels are based on means of 26, 16, and 28 samples (northern Sweden) and 29, 9, and 15 samples [..]
Temporal trends in PCB and DDT levels (µg/g lw ± 95% confidence limits) of otter muscle in Sweden Levels are based on means of 26, 16, and 28 samples (northern Sweden) and 29, 9, and 15 samples (southern Sweden)

Historical profiles of PCBs (trichloro- and all other) in slices from dated sediment cores in Alaska, Canada, and Finland Median age of each slice is given on the vertical axis The green lines indicate the source function of PCBs

Historical profiles of PCBs (trichloro- and all other) in slices from dated sediment cores in Alaska, Canada, and Finland Median age of each slice is given on the vertical axis The green lines [..]
Historical profiles of PCBs (trichloro- and all other) in slices from dated sediment cores in Alaska, Canada, and Finland Median age of each slice is given on the vertical axis The green lines indicate the source function of PCBs

Concentrations, as geometric means, of major organochlorine groups in burbot liver at Fort Good Hope, NWT, Canada (1986-94) Vertical bars denote standard errors

Concentrations, as geometric means, of major organochlorine groups in burbot liver at Fort Good Hope, NWT, Canada (1986-94) Vertical bars denote standard errors
Concentrations, as geometric means, of major organochlorine groups in burbot liver at Fort Good Hope, NWT, Canada (1986-94) Vertical bars denote standard errors

Temporal trends in levels of PCB, DDT, alpha-HCH, and HCB in muscle from Lake Storvindeln pike and Lake Abiskojaure char in Sweden Mean levels (µg/g lw) and 95% confidence intervals of the mean are represented by dark points,

Temporal trends in levels of PCB, DDT, alpha-HCH, and HCB in muscle from Lake Storvindeln pike and Lake Abiskojaure char in Sweden Mean levels (µg/g lw) and 95% confidence intervals of the mean are [..]
Temporal trends in levels of PCB, DDT, alpha-HCH, and HCB in muscle from Lake Storvindeln pike and Lake Abiskojaure char in Sweden Mean levels (µg/g lw) and 95% confidence intervals of the mean are represented by dark points,



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