The oceans are more acidic now than they have been for at least 300m years, due to carbon dioxide emissions from burning fossil fuels, and a mass extinction of key species may already be almost inevitable as a result, leading marine scientists warned on Thursday.
An international audit of the health of the oceans has found that overfishing and pollution are also contributing to the crisis, in a deadly combination of destructive forces that are imperilling marine life, on which billions of people depend for their nutrition and livelihood.
“If science is the constellation of facts, theories, and methods collected in current texts, then scientists are the men who, successfully or not, have striven to contribute one or another element to that particular constellation. Scientific development becomes the piecemeal process by which these items have been added singly and in combination, to the ever growing stockpile that constitutes scientific technique and knowledge. And history of science becomes the discipline that chronicles both these successive increments and the obstacles that have inhibited their accumulation. Concerned with scientific development, the historian then appears to have two main tasks. On the one hand, he must determine by what man and at what point in time each contemporary scientific fact, law, and theory was discovered or invented. On the other, he must describe and explain the congeries of error, myth, and superstition that have inhibited the more rapid accumulation of the constituents of the modern science text.”—
Kuhn, Thomas. The Structure of Scientific Revolutions. 3rd ed. Chicago: The University of Chicago Press, 1996. p.1-2. Print.
The New York Times (@nytimes) tweeted at 7:27 PM on Mon, Jul 15, 2013: Corrected spelling: Kidney disease gets less attention than breast or prostate cancers, but kills more than both the official Twitter app at https://twitter.com/download
Global warming is expected to have far-reaching, long-lasting and, in many cases, devastating consequences for planet Earth. For some years, global warming — the gradual heating of Earth’s surface, oceans and atmosphere — was a topic of heated debate in the scientific community.
But the overwhelming consensus of researchers today is that global warming is real and is caused by human activity, primarily the burning of fossil fuels that pump carbon dioxide (CO2), methane and other greenhouse gases into the atmosphere.
Additionally, global warming is having a measurable effect on the planet right now. [ Increase in average temperatures, extreme weather events, shift in climate patterns, snow and ice, rising sea levels, ocean acidification, plant and animal impacts, social impacts] …