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Tag: Weather

Forecast World 2015
What will the world situation, specifically related to development and environment, be in 2015? This graphic, in the form similar to a weather forecast, tries to paint out a likely future scenario, with both good and bad...
20 Sep 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
Climate change in Zimbabwe: trends in temperature and rainfall
Zimbabwe is experiencing more hot days and fewer cold days, and the amount of precipitation it receives is deviating from the mean more frequently. This resource includes two graphics. The first shows the number of days ...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Great weather and flood catastrophes over the last forty years
Some reports suggest that increase in climate variability or extremes has taken place in recent decades. However, there are inadequate data to determine whether such global changes have occurred consistently over the 20t...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Tropical cyclone frequency
Tropical cyclones, or hurricanes or typhoons, are storm weather systems, characterised by a low pressure centre, thunderstorms and high windspeeds. As the name testifies, these occur in the areas between the tropics, in ...
09 Oct 2007 - by Emmanuelle Bournay, UNEP/GRID-Arendal
Climate change and vector-borne diseases
Climate change and altered weather patters would affect the range (both altitude and latitude), intensity, and seasonality of many major tropical vector-borne and other infectious diseases - such as malaria and dengue fe...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Global costs of extreme weather events
The loss data on great natural disasters in the last decades show a dramatic increase in catastrophe losses. A decade comparison since 1960 is shown in the table. The reasons for this development are manifold and encompa...
17 May 2005 - by Emmanuelle Bournay, UNEP/GRID-Arendal
Early warning systems
Every year, disasters caused by weather, climate and water-related hazards impact on communities around the world, leading to loss of human life, destruction of social and economic infrastructure and degradation of alrea...
01 Feb 2006 - by Emmanuelle Bournay, UNEP/GRID-Arendal
Global costs of extreme weather events
The loss data on great natural disasters in the last decades show a dramatic increase in catastrophe losses. A decade comparison since 1960 is shown in the table. The reasons for this development are manifold and encompa...
01 Feb 2006 - by Emmanuelle Bournay, UNEP/GRID-Arendal
Tropical cyclone frequency
Tropical cyclones, or hurricanes or typhoons, are storm weather systems, characterised by a low pressure centre, thunderstorms and high windspeeds. As the name testifies, these occur in the areas between the tropics, in ...
01 Feb 2006 - by Emmanuelle Bournay, UNEP/GRID-Arendal
Northern Sea Route and the Northwest Passage compared with currently used shipping routes
Climate models project that summer sea ice in the Arctic Basin will retreat further and further away from most Arctic landmasses, opening new shipping routes and extending the navigation season in the Northern Sea Route ...
01 Oct 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
The “Hole”: a result of special weather conditions over the pole repeated every spring
The Antarctic continent is circled by a strong wind in the stratosphere which flows around Antarctica and isolates air over Antarctica from air in the midlatitudes. The region poleward of this jet stream is called the An...
29 Nov 2007 - by Emmanuelle Bournay, UNEP/GRID-Arendal
Major research stations in Antarctica
Antarctica is interesting for many types of researchers. For example, glaciologists study the ice and snow, while oceanographers look at the oceans. The ice, snow and oceans affect the global climate and are presently ch...
31 Jul 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Northern Sea Route and the Northwest Passage compared with currently used shipping routes
Climate models project that summer sea ice in the Arctic Basin will retreat further and further away from most Arctic landmasses, opening new shipping routes and extending the navigation season in the Northern Sea Route ...
01 Oct 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
Major research stations in the Arctic
The Arctic is interesting for many types of researchers. For example, glaciologists study the ice and snow, while oceanographers look at the oceans. The ice, snow and oceans in the Arctic and Antarctic affect the global ...
31 Jul 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
Projected impacts of climate change
Global climate change may impact food production across a range of pathways (Figure 17): 1) By changing overall growing conditions (general rainfall distribution, temperature regime and carbon); 2) By inducing more ex...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
FAO Commodity Price Indices
Although production has generally increased, the rising prices coincided with extreme weather events in several major cereal producing countries, which resulted in a depletion of cereal stocks. The 2008 world cereal s...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Possible individual ranges of yield and cropland area losses by 2050
Figure 24: Possible individual ranges of yield and cropland area losses by 2050 with climate change (A2 scenario), non-food crops incl. biofuels (six OECD scenarios), land degradation (on yield and area, respectively, s...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
FAO Food price index (FFPI)
The current world food crisis is the result of the combined effects of competition for cropland from the growth in biofuels, low cereal stocks, high oil prices, speculation in food markets and extreme weather events. T...
02 Feb 2009 - by Hugo Ahlenius, UNEP/GRID-Arendal
Simulated Future Temperature Trends
Weather patterns are altered.
27 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Arctic terrestrial species trends 1970-2005 (ASTI)
Dramatic changes, such as sea ice loss, are projected to occur in Arctic ecosystems over the next century. Understanding how the Arctic’s living resources, including its vertebrate species, are responding to these change...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
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