- Climate change has undeniable impacts on water.Direct ways in which climate change impacts the water cycle: effects on precipitation and evaporation cycles.
- Changing water cycles caused by climate change will affect food production, land use and survival of plant and animal species.
- A balance between mitigation and adaptation strategies has to be established at policy and programme levels so that ‘win-win’ solutions can be realized.
- Agriculture, as the sector requiring the largest percentage of water resources, is a primary area for development of adaptation strategies.
- Evidence of the impact of climate change on the earth’s hydrological cycle is mounting in many regions of the world, in the form of increased frequency of floods, droughts and other water hazards and changes in long-term trends in precipitation. In many countries, water “stress” in its various forms is likely to soon become the normal state of affairs.
- Water and the Millennium Development Goals -The Millennium Goals include the following water-related targets:
‘To halve, by the year 2015, the proportion of the
world’s people whose income is less than one
dollar a day and the proportion of people who
suffer from hunger and, by the same date, to
halve the proportion of people who are unable
to reach or to afford safe drinking water.’
‘To stop the unsustainable exploitation of water
resources by developing water management
strategies at the regional, national and local
levels, which promote both equitable access
and adequate supplies.’ - The Himalayan Rivers and the basins fed by them are
particularly vulnerable to the impacts of climate change.
Half a billion people live in these river basins, supporting
a further half billion with food and other needs in their
hinterlands. The rivers in the southern Himalayas support
wheat cultivation on a huge scale during the rabi season
(November to March/April). A diminution of dry season
flows from snowmelt due to the receding snow line from
climate change would have a seriously adverse impact on the
lives of over a billion people in Asia, aggravating the tensions
over sharing dry season flows.
– The International Commission on Irrigation and Drainage (ICID) - Water is part of the vital nexus of climate change, energy,
food, environmental degradation and economic development.
Climate change can also directly affect demand for water, for
instance though changes in demands from industrial cooling,
household use, or irrigation. - Global warming is likely to result in an intensification,
acceleration or enhancement of the global hydrological cycle.
There is already evidence that this is happening in some regions
through increased frequency of floods and droughts and changes
in long-term precipitation trends.
"With an average annual rainfall of 1,170 mm, India is one of the wettest countries in the world. Still, even with its rich natural water resources, with more than 300,000 square meters of bodies of water, the country is plagued by environmental issues such as water pollution from raw sewage and runoff of agricultural pesticides (Sharma, 2005). Another major problem is that tap water is not potable throughout the country. This implies that people, especially those from the lower income bracket, cannot avail of clean drinking water, since these have to be bought. Repugnant as it may sound, it is a reality that millions of Indians queue up everyday at public taps for one of life's most precious commodity — water."
-ADB
Wednesday, 9 December 2009
Some thoughts on Water ,Climate and the MDGs
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Disclaimer: This Blog is a small step towards building a knowledge-based platform for Professionals interested in "water resources management(WRM)". One of the objective is knowledge dissemination. Please note that VIEWs expressed here are purely personal.
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