Wednesday 6 February 2019

Recent evidences of global warming and climate change




Global warming and climate change impact is quite evident by extreme weather events. UN,  WMO and IPCC data also confirms warming of the Earth .

It leads to interconnected events such as :-

1) air temperatures is increasing ,record higher temperature each passing year. The year 2018, is the hottest year of century and crosses 1degree clesius temperature rise W.r.t. pre-industrial phase.

2) melting of ice cover from first pole of Arctic ocean, Greenland glaciers, second pole of Antarctic glaciers, Third pole of Hindukush -Himalayan region,  receding glaciers, breaking ice shelves,

3) weakining of Polar vortex , making Polar jet stream more wavy, during winter cold air mass of poles enters the lower latitudes causing extreme chill winds, temperatures falls below -50 degree Celsius, heavy snowfall, while during summer season heat waves causing heat strokes, forest fires, tropical disease spread,etc.

4) water resources is being depleted due to speedy hydrological cycle operations, extreme rainy days and longer dry spells, floods, droughts, soil erosion, silting of water bodies, desertification, shrinking of water bodies, example : lake Chad, lake Urmia,  Aral sea of central Asia.

5) stormy weather conditions such as Tropical cyclones, storms, thunderstorm activities are intense, dust storms, sand storms, cloud burst, etc is damaging the ecology , loss of life and property.

6) seawater changes due to global warming is rising of sea temperatures, thermal expansion (stearic effect) and melting of icesheets is adding waters leads to sea level rise, coral bleaching, coral erosion, submergence of Islands, oceanic acidification, dead oceanic zones,etc

7) poor health and infection related diseases is spreading, avian influenza, food production and agricultural sector is being damaged, food crisis leads to failure of crops, less nutritive crops, farmer distress intensified, starvation related death increases, out migration dominates, environmental refugees of Africa's Sahel region and horn of Africa and Yemen.

8 ) loss of biodiversity, mass extinction of species, migration of vegetation towards higher latitude and higher altitudes.

9) ice cover and glaciers are melting at faster rate from Arctic ocean, Antarctic , Himalayas, Greenland, etc

10) local community such as tribal, rural, fishing , forest dwellers, pastoral, coastal, etc adversely affected, increasing their vulnerability, loss of livlihoods.

11) intensity and frequency of Tropical cyclones has been increased.

12) precipitation patterns are changing causing frequent droughts and floods.

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