Agua & Riego
Juan G. R., Juan G. R., Juan P. J. A. Melting in the poles continues with its implacable advance.
Water and Irrigation Vol .: 8, No. 1: 7-8, July 2017, Spain.
Global warming intensifies, 2016 has been very hot and 2017 is not behind it behaves also hot, mainly due to greenhouse gas emissions generated by human activity and climate change. November and December temperatures in the Arctic have been 5 degrees above average, last year at the North Pole were very high temperatures near zero degree. Currently an iceberg of about 5,800 square kilometers, has been detached from the continental mass at the South Pole in early July 2017 and is floating in the Atlantic Ocean, is the largest recorded. The increase in water levels in the seas and oceans has among other consequences that some islands in the Pacific archipelago have already disappeared and others are in the process of disappearing, sea waters also invade other low coastal areas in different regions of the world.
The average temperature of the planet has been increasing continuously, which has contributed to the melting of the poles and a great climatic instability that affects the high development of droughts and floods and a greater power of the activity of the wind, continues to manifest itself during 2017.
The Antarctic has an area of 14 million square kilometers, is a territory cold, dry and windy. The average annual temperature in Antarctica ranges from 10 degrees below zero on the coast to 60 degrees below zero in the higher interior zones, the temperature in the area has increased by three and a half degrees since 1904.
Global warming intensifies, 2016 has been very hot and 2017 is not behind it behaves also hot, currently an iceberg of about 5,800 square kilometers, has detached from the continental mass in early July 2017 and is floating in The Atlantic Ocean, is the largest recorded. The UN announced that a very high temperature has returned to the Antarctic region.
November and December temperatures in the Arctic have been 5 degrees above average. Globally, 2016 is the warmest year, due mainly to the greenhouse gas emissions generated by human activity and by the powerful El Niño climate phenomenon in the Pacific Ocean, last year at the North Pole temperatures was very high near zero degrees.
In the Arctic region, warming is twice the global average, affecting the balance of fauna and flora in the area, as well as facilitating the search for oil and gas and environmental pollution in the region. The usual climate in the Arctic is around -30 degrees Celsius, according to data from the buoy located in the Arctic Ocean north of the Norwegian island of Spitsbergen. NASA has released a video confirming the melting of the North Pole since the mid-1980s.
In the past, the North Pole was covered with ice all year round, in winter, the ice sheet extended to latitudes as low as the Bering Sea, Baffin Bay, and the Greenland Sea in summer, receding, but the frosty edge came close to the shores. The icebreakers had great difficulty crossing the narrow coastal passes of the North Sea Route and the Northwest Passage. The situation has changed the area that at that time had about 8 million square kilometers in September, currently in that month only has 3 to 4 million square kilometers, and the average thickness of the ice has been reduced by half.
The increase in water levels in the seas and oceans has, among other consequences, some of the islands in the Pacific archipelago already disappeared and others are disappearing, scientists point out that the rise in sea level is mainly due to the impact of human activity on the environment. The recession of the coast destroyed villages that had existed since at least 1935, which is leading to relocation of communities and that entire families have to be dispersed. In other cases in different regions of the world the level of sea water has continued with the invasion of low coastal areas.
According to the FAO, agricultural production in the countries of the Pacific islands depends to a large extent on the rains in the summer season. Predictions of climate change in the region suggest prolonged variations from the normal level of precipitation, with devastating effects on agriculture, including water scarcity, more pests and weeds, erosion and loss of soil fertility.