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Showing posts with the label Weather

Cotton-major cash giving but world's 'dirtiest' crop

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Cotton is considered the world's 'dirtiest' crop due to its heavy use of insecticides, the most hazardous pesticide to human and animal health. Cotton covers 2.5% of the world's cultivated land yet uses 16% of the world's insecticides, more than any other single major crop. Cotton is one of the most water and pesticide intensive agricultural commodity, is responsible for significant adverse impacts on human and animal (livestock) health, natural resources such as land and fresh water and global biodiversity. 1. Cotton production plays a primary role in degradation of agro-ecosystems by indiscriminate use of agrochemicals such as fertilizers and pesticides. In addition, adverse impacts on the communities in terms of health risks to working men and women and increase in poverty and dependency due to the high pesticides costs and indebtedness are common. 2. In many cases irrigation systems are very inefficient and therefore lead to wide spread negative impac...
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Asia, located primarily in the eastern and northern hemispheres, is the world’s largest and most populous continent, Population of Asia 2011 is 3,879,000,000 (3.8 billion). It covers 8.6% of the Earth’s total surface area (or 29.9% of its land area) and with approximately 4 billion people, it hosts 60% of the world’s current human population, But only about 36 percent of the renewable fresh water. So, even on a continental scale, it is clear that water is a serious constraint in Asia. China, India and Pakistan are three of the four top irrigators in the world, suffering with serious water problems. Pakistan has in most areas of agriculture a monsoon climate, and there might be abundant rainfall during the wet season and then a very long dry season where crop production depends very heavily on irrigation water. Groundwater is a very important source of irrigation for farmers. Ground water is being over-pumped extensively in order to meet current demands for food production but if ou...

A Small Effort by Each of Us Will Make A Big Difference

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In Pakistan, the annual mean surface temperature has been  consistently rising trend since the beginning of 20th century. The rise in mean temp. has been  of 0.6-1.0°C in arid coastal areas, arid mountains and hyper arid plains, and there has been a 10-15% decrease in both winter and summer rainfall in the coastal belt and hyper arid plains. There has been an 18-32% increase in rainfall in the monsoon zone especially the sub-humid and humid areas. There is a 5% decrease in relative humidity in Baluchistan, 0.5 to 0.7% Increase in solar radiation over the southern half of the country. These  drastic environmental changes are all due to global warming because of our wasteful  usage of natural resources and an increase in  pollutants that are further causing irreversible changes to our mother land. We must adopt steps like other developed nations to reduce and further overcome these types of problems. In America the National Green Week is the largest waste red...

Asian Countries Face the Greatest Risk from Severe Climate Change

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s Ban Ki Moon said in September 2007  “ Given the nature and magnitude of the challenge, national action alone is insufficient. No nation can address this challenge on its own. No region can insulate itself from these climate changes. That is why we need to confront climate change within a global framework, one that guarantees the highest level of international cooperation” Asian countries including Pakistan face the greatest risk from severe climate change, which could force millions of people to flee their homes and trigger environmental migration, according to an Asian Development Bank report. The report titled "Climate Change and Migration in Asia and the Pacific" says Bangladesh, India, Maldives and Pakistan face the greatest risk, but Indonesia, the Philippines, Thailand, Vietnam, Japan, China and South Korea are also especially vulnerable. Public opinion in  Pakistan in recent years has largely disapproved of how the Government of Pakistan totally ignor...