Diferencies ente revisiones de «Seca»

L'actividá humana puede directamente desencadenar factores agravantes —tales como la sobre-esplotación de la tierra, el riego escesivu,<ref name=Galilee>[http://www.belfasttelegraph.co.uk/news/world-news/a-biblical-tragedy-as-sía-of-galilee-cares-drought-13956116.html A biblical tragedy as Sía of Galilee cares drought.] Belfast Telegraph.</ref> y la [[deforestación]]— que fomenten la [[erosión]] y afecten negativamente a la capacidá de la tierra de prindar y retener l'agua.<ref>[http://forests.org/shared/reader/welcome.aspx?linkid=63511&keybold=climate%20drought%20water%20catchment Keña: Deforestation exacerbates droughts, floods.]</ref> Ente que los efectos d'éstos factores tienden a ser relativamente aisllaos nel so algame, prevese que les actividaes que conducen al [[cambéu climáticu]] global pueden desencadenar seques con un gran impautu na agricultura a nivel global,<ref>[https://web.archive.org/web/20080625001539/http://www.economics.noaa.gov/library/documents/benefits_of_weather_and_climate_forecasts/drought-climate_change-implications_for_west.doc NOAA Drought and climate change: implications for the West.] December 2002.</ref> y especialmente en [[Subdesarrollo|países subdesendolcaos]].<ref>[http://www.finfacts.com/irelandbusinessnews/publish/article_1011078.shtml Record rise in wheat price prompts UN official to warn that surde in food prices may trigger social unrest in developing countries.]</ref><ref>[https://archive.is/20120913201531/http://www.timesdaily.com/article/20070914/NEWS/709140329/1011/RSS&source=RSS Fuel costs, drought influence price increase.]</ref><ref>[https://web.archive.org/web/20051028012509/http://usinfo.state.gov/af/Archive/2005/Oct/26-779234.html Nigerian Scholar Links Drought, Climate Change to Conflict Africa Oct, 2005.]</ref> Polo xeneral, el calentamientu global va traducir nun aumentu de les precipitaciones nel mundu.<ref>[http://www.commondreams.org/headline/2008/11/02-2 Is Water the New Oil?]</ref> Xuntu coles seques en delles zones, los hinchentes y l'erosión van amontar n'otros.

 

[[Archivu:FEMA - 917 - Photograph by Angel Santiago taken on 04-03-1998 in Marshall Islands.jpg|thumb|upright|Distribución d'agua nes [[Islles Marshall]] mientres [[El Neñu]].]]

Esisten delles estratexes pa protexese contra les seques, o apangar los sos efectos: