Why a sustainable aquaculture is important
By: Jude Barton
Aquaculture is the term used for the growing and cultivating of plants and animals in water. Fresh water aquaculture can take place in lakes, streams, ponds or man-made environments. Marine aquaculture takes place in salt water and involves the raising of shellfish, mussels and saltwater...
By: Terrence Aym
The dangerous supervolcano that once destroyed much of what's now the USA is much bigger than vulcanologists previously thought.That's the disturbing information confirmed by an important new study published in the prestigious journal of Geophysical Research Letters.The volcano has been producing ominous warning...
By: Chris Wiegard
Global warming is widely understood by scientists, and to a lesser extent by non-scientists, as posing serious risks for future humanity. As humans are land dwellers, it is perhaps understandable that more alarm has been generated by the projected negative impacts on land than in...
By: Jerome Carter
Since the late 20th century wild stocks of popular food fish have been declining around the world. Much of this have been due to overfishing. Pollution and habitat destruction have contributed to the problem.It seems that it is impossible to prevent overfishing or to...
By: Charles Ray
Humans might think of space as a dark emptiness where there is no air, and where nothing happens. But, the fact is, nothing could be farther from the truth. In space there are constant violent transfers of matter and energy, and those transfers, particularly from...
The effects of ocean acidification
By: Nigel Holmes
The amount of carbon dioxide (CO2) in the atmosphere is rising, and this is increasing the acidity of the oceans. The way this happens is that atmospheric CO2 dissolves in water to produce bicarbonate (chemically-speaking, HCO3) and hydrogen ions. The more hydrogen ions that are...
By: John Jacob Smith
Throughout history and in present times, limestone has been used for a variety of purposes. The use of limestone on a large scale has been dated back to the construction of the Great Pyramid of Giza (c. 2560 BC). First of all, one of the...
Study: Petroleum may be abiogenic, not fossil-based
By: Terrence Aym
In another blow to the theory that petroleum is a fossil fuel, a new study reveals evidence that oil is created abiotically by geological processes. The abiogenic petroleum theoryDuring the 16th Century, Russian Georg Agricola developed the theory of abiogenic petroleum. Later, other theories that...
By: Gordon Hamilton
The fishing industry is one which has been in decline for a great many years. As demand for fish and seafood has grown from an increasingly numerous and prosperous human population, fishermen and all those associated with the industry have had to develop new practices...
By: Zain Arif
While the Sun may appear stable, it is in fact perpetually changing in a cycle that repeats every eleven years. On the surface, sunspots are constantly appearing and vanishing, with flares and large ejections of mass (coronal mass ejections) occurring in time-spans of minutes to...

 

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