The Carbon dioxide concentration in the atmosphere has increased by approximately 1/3 in 200 years resulting in increased temperatures on earth, that have negative impacts on nature and humans!
Half of life in the seas has disappeared during the last 40 years!
The structural elements in bringing about this status are established through time, and adjusting the framework to something sustainable requires accordingly effort!
Acknowledging the unintended negative impact of human activity on the environment, particularly by the technological development in its enhanced ability to effect the forces of nature, together with shortsighted profit generating mechanisms in market and state, it seems as a very real challenge for humanity to overcome!
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A new report from the World Wildlife Fund indicates a nearly 50% decline in marine life populations between 1970 and 2012.
The study uses a Living Planet Index based on trends in 5,829 populations of 1,234 mammal, bird, reptile and fish species in the ocean.
According to the report, populations of locally and commercially fished species have also fallen by half, and some even more. The tuna and mackerel populations have seen a nearly 75% decline and Bluefin tuna in the Pacific are on the brink of extinction. This is largely due to the global problem of overfishing, the authors said.
A second problem is pollution. There is 250,000 metric tons of plastic in the oceans. Plastic harms smaller fish that bigger fish rely on for survival and may also harm larger fish and mammals who become tangled or trapped, resulting in suffocation.
Related to pollution is climate change, which is responsible for changing the oceans more rapidly than at any other point in recorded history. A slight rise in temperature will change ocean currents and increase acidity levels. A slight temperature increase will also disrupt the ocean's food chain. Species will alter their migratory patterns in search of cooler water, which will only further unbalance the world's oceans.
World Wildlife Fund
Living Blue Planet Report
Living Blue Planet Report
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Air pollution costs Europe $1.6tn a year in early deaths and disease, say WHO
Costs of dirty air are equivalent to about a tenth of Europe’s GDP, with Germany, UK and Italy among the hardest hit economically
The financial cost of air pollution in Europe stands at more than $1.6tn (£1.5tn) a year, a study by the World Health Organisation (WHO) has found, equating to about a tenth of the GDP of the continent.
World Health Organisation (WHO)
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