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Historical trends in carbon dioxide concentrations and temperature, on a geological and recent time scale Historical trends in carbon dioxide concentrations and temperature, on a geological and recent time scale
The most recent geological history, in the last hundred thousand years, has been characterised by cycles of glaciations, or ice ages. The historic temperatures, through these times, have been low, and continental ice sheets have covered large parts of the world. Through ancient air, trapped in tiny bubbles in the Antarctic ice, we have been able to see what the temperature cycle was at that time, and also the concentration of carbon dioxide (CO2)...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Political history of the Balkan region Political history of the Balkan region
The west Balkans and the Black Sea region are characterized by numerous common risks and challenges, including fragile statehood, a shared history of violent conflict, unconsolidated democratization and economic underdevelopment. Here is a series of maps that reflect the political landscape of the area from 1878 to 2006.
30 Nov 2007 - by Philippe Rekacewicz, Stephane Kluser, Matthias Beilstein, Ieva Rucevska, Cecile Marin, Otto Simonett
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The Bor copper mines The Bor copper mines
Southeast Europe, as we have seen, has a long history of mining base and precious metals, reaching back to the fifth century BC at least. In Serbia, for example, archaeological exploration of the Bor site suggests that copper mining started in prehistoric times.
30 Nov 2007 - by Unknown
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Population groups in the Balkan region and Eastern Europe Population groups in the Balkan region and Eastern Europe
The wars in former Yugoslavia sped up the process of ethnic homogenization in the west Balkans since modern states started to take form in the 19th century. In Croatia, for instance, the proportion of Serbs in the overall population has dropped from 12 per cent to just 4 per cent in 10 years.
30 Nov 2007 - by Philippe Rekacewicz, Le Monde Diplomatique and UNEP/GRID-Arendal
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Belarus, Moldova and Ukraine: topography Belarus, Moldova and Ukraine: topography
Eastern Europe extends from the northern shore of the Black Sea in Ukraine up to the Baltic Sea basin in Belarus. It covers 845,000 square kilometers and is home to almost 60 million people. These nations share common borders, watersheds, and infrastructure and have many similarities in their geography, history, culture and economy.
04 Oct 2005 - by Viktor Novikov, UNEP/GRID-Arendal
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A history of waste management A history of waste management
A visual timeline of historical waste manaement. From the first recorded landfill created in Knossos in 3000 B.C. to the English parliament banning waste disposal in public waterways and ditches in 1388 to the establishment of The Basel Convention in 1992.
15 Dec 2006 - by Diana Rizzolio, Emmanuelle Bournay
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Kyoto protocol, timeline and history Kyoto protocol, timeline and history
The Kyoto Protocol In 1997 world leaders adopted the Kyoto Protocol requiring rich countries to reduce their greenhouse gas emissions to 5.2% below the 1990 level, calculated as an average over the period 2008-2012. Under the Kyoto Protocol the rich countries have different targets, that in sum adds up to a reduction of 5.2%. For example, the European Union aims for an 8% cut in total, Germany committed to a 21% cut and the United Kingdom to 12.5...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Metal production in the South Kyrgyz mines of the Ferghana Valley Metal production in the South Kyrgyz mines of the Ferghana Valley
In the soviet period the industrial operations paid little attention to environment or public health, resulting in the accumulation of pollutants in the local environment. Because of their vulnerability to natural hazards, previous history of accidents, and their position along water courses and in the vicinity of towns and cities in transboundary areas, tailing dumps at both active and closed mining enterprises constitute an environmental as wel...
16 Mar 2006 - by Viktor Novikov, UNEP/GRID-Arendal
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Demography of indigenous peoples of the Arctic based on linguistic groups Demography of indigenous peoples of the Arctic based on linguistic groups
Language not only communicates, it defines culture, nature, history, humanity, and ancestry. The indigenous languages of the Arctic have been formed and shaped in close contact with their environment. They are a valuable source of information and a wealth of knowledge on human interactions with nature is encoded in these languages. If a language is lost, a world is lost. This deep knowledge and interconnectedness is expressed in Arctic song, subs...
01 May 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Temperatures over previous centuries from various proxy records Temperatures over previous centuries from various proxy records
Evidence from tree rings and other temperature proxies suggests that during the previous 500 years global temperatures were 1.0ºC cooler than those of the 20th century during a period roughly from 1300 to 1870 – known as the Little Ice Age. While overall temperatures during the Little Ice Age were cooler than now, there was much year-to-year variability and some warm periods. The coldest part of the Little Ice Age, from 1645 to 1715, was also a t...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Trends in Arctic temperature, 1880-2006 Trends in Arctic temperature, 1880-2006
A history of Arctic land temperature anomalies from 1880 through 2006 is shown in this figure. The zero line represents the average temperature for 1961–1990. In the late 1800s the Arctic was relatively cold, although there is some uncertainty around these early temperature estimates. The Arctic warmed by about 0.7ºC over the 20th century. There was a warm period in the 1920s to 1940s and cold periods in the early 1900s and in the 1960s. Over th...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Ice avalanches of the Nevados Huascarán in Peru Ice avalanches of the Nevados Huascarán in Peru
Many disasters have been recorded from the glaciers in the Cordillera Blanca. The 1962 and 1970 events originating from Glaciar 511 on the Nevados Huascarán, the highest peak of which is at 6768 m above sea level in the Peruvian Andes, were particularly severe. On 10 January 1962, an ice avalanche took place with an estimated starting volume of 10 million m3; the avalanche travelled down 16 km and destroyed the city of Ranrahirca, where 4000 peop...
01 Jun 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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The ozone international awakening timeline The ozone international awakening timeline
A record of major events in the history of producing ozone depleting substances (ODS), the discoveries of the harmful process and the steps made to combat the problem from 1879 to 2006, with predictions to 2070 as the date when the ozone hole over the Antarctic will recover.
29 Nov 2007 - by Emmanuelle Bournay, UNEP/GRID-Arendal
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Species extinction rates Species extinction rates
Comparisons with the rate at which species have disappeared from the planet over a long period of Earth’s history indicate that humans have already increased extinctions levels dramatically. Projections suggest that this rate will take another big leap due to changes over the next 50 years. The bars represent the range of estimates in each case.
30 Nov 2007 - by Philippe Rekacewicz, Emmanuelle Bournay, UNEP/GRID-Arendal
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Historical trends in carbon dioxide concentrations and temperature Historical trends in carbon dioxide concentrations and temperature
The more recent history, from the middle ages and up until now, show increasing temperatures, rising as the world emerged from the Little Ice Age (LIA), around 1850. With the industrial era, human activities have at the same time increased the level of carbon dioxide (CO2) in the atmosphere, primarily through the burning of fossil fuels. Carbon dioxide is one of the main greenhouse gases, and scientists have been able to connect human activities ...
31 Jul 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Trends in speakers of Arctic indigenous languages (1989-2006) Trends in speakers of Arctic indigenous languages (1989-2006)
Language not only communicates, it defines culture, nature, history, humanity, and ancestry. The indigenous languages of the Arctic have been formed and shaped in close contact with their environment. They are a valuable source of information and a wealth of knowledge on human interactions with nature is encoded in these languages. If a language is lost, a world is lost. This deep knowledge and interconnectedness is expressed in Arctic song, subs...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
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Demography of indigenous peoples of the Arctic based on linguistic groups Demography of indigenous peoples of the Arctic based on linguistic groups
Language not only communicates, it defines culture, nature, history, humanity, and ancestry. The indigenous languages of the Arctic have been formed and shaped in close contact with their environment. They are a valuable source of information and a wealth of knowledge on human interactions with nature is encoded in these languages. If a language is lost, a world is lost. This deep knowledge and interconnectedness is expressed in Arctic song, subs...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
4
Trends in speakers of Arctic indigenous languages (1989-2006) Trends in speakers of Arctic indigenous languages (1989-2006)
Language not only communicates, it defines culture, nature, history, humanity, and ancestry. The indigenous languages of the Arctic have been formed and shaped in close contact with their environment. They are a valuable source of information and a wealth of knowledge on human interactions with nature is encoded in these languages. If a language is lost, a world is lost. This deep knowledge and interconnectedness is expressed in Arctic song, subs...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
3
Demography of indigenous peoples of the Arctic based on linguistic groups Demography of indigenous peoples of the Arctic based on linguistic groups
Language not only communicates, it defines culture, nature, history, humanity, and ancestry. The indigenous languages of the Arctic have been formed and shaped in close contact with their environment. They are a valuable source of information and a wealth of knowledge on human interactions with nature is encoded in these languages. If a language is lost, a world is lost. This deep knowledge and interconnectedness is expressed in Arctic song, subs...
01 Oct 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
4
Demography of indigenous peoples of the Arctic based on linguistic groups Demography of indigenous peoples of the Arctic based on linguistic groups
Language not only communicates, it defines culture, nature, history, humanity, and ancestry. The indigenous languages of the Arctic have been formed and shaped in close contact with their environment. They are a valuable source of information and a wealth of knowledge on human interactions with nature is encoded in these languages. If a language is lost, a world is lost. This deep knowledge and interconnectedness is expressed in Arctic song, subs...
01 May 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
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