Sentences with phrase «by early humans caused»

Not exact matches

Usually, however, human behavior is not caused by the direct application of physical force, but is controlled by habit patterns acquired in earlier social experience.

Earlier this year, a group of leading evangelicals released a proclamation of sorts, saying global warming is real, is caused by humans and needs to be brought under control.

Australia also experienced record rainfall in early 2012, and while La Niña, a natural variation, was behind much of that, researchers found that human - caused climate change increased the chance of the above - average rainfall by 5 to 15 percent.

PE: If I were going to put my money on it, I would bet that by 2050 — hopefully earlier — we'll have found that more than 80 percent of all human cancer is caused by infection.

Scientists investigating the mechanisms of Down Syndrome (DS) have revealed the earliest developmental changes in embryonic stem cells caused by an extra copy of human chromosome 21 — the aberrant inheritance of which results in the condition.

That finding, detailed in the journal Science Advances, fits with the conclusions of an earlier study by Swain and his colleagues that suggested such persistent ridging was more likely to occur in a world with human - caused warming than one without it.

Moreover, many human tumors have highly abnormal numbers of chromosomes (that is, they are aneuploid), with initial chromosomal loss participating in the early steps of the transformation cascade in inherited cancers caused by heterozygous mutation in tumor suppressor genes and the more widespread aneuploidy characteristic of advance tumors thought to drive acquisition of malignant growth properties.??

One study found that exposing male mice for one - fifth of their lifespan to steroid doses comparable to those taken by human athletes caused a high frequency of early deaths.

As we mentioned earlier in the post, antioxidants are very important for human health, providing protection to our DNA from cell damage caused by harmful free radicals.

But given what I understand to be true, that greater warming has occured than in the distant past than is currently occurring, how can we be so sure we are examining all the right 20th century events, since these earlier warmings were clearly caused by events other than human driven carbon dioxide emissions?

a) Our models can not explain the early 20th century warming period b) We know that the (statistically indistinguishable) late 20th century warming was caused principally by human - caused forcing.

Glantz has explicitly likened the fossil fuel industry's campaign to deny the science of human - caused climate change to the earlier campaign by the tobacco industry to deny the adverse health impacts of their product.

Earlier this month, a New York Times article by Andy Revkin voiced concern over a gap between «the consensus» of climate scientists and public acceptance of the theory of human - caused global warming.

As it so happens, there were significant human GHG emissions in the early 20th Century, which caused atmospheric CO2 levels to rise from 300 to 310 parts per million by volume (ppmv) from 1910 to 1945.

This past week has brought some attention to a much earlier «let's pretend» — that global climate is influenced primarily by human - caused carbon dioxide emissions rather than changes in the sun, our source of heat and light.

I have here earlier written: «Judith Curry's statement» how much warming is caused by humans is THE key issue of debate» is the most urgent one in the order of priority to be solved.

We know the Earth has been both warmer and colder in historical times, and the earlier climate shifts are unlikely to have been caused by human influence.

Earlier this month, the Los Angeles Times officially confirmed the paper is no longer running letters to the editor that deny the scientific conclusion that climate change is a reality and is caused mainly by human activities.

While this faulty paper has never been retracted, it is now no longer quoted as evidence by the IPCC — nor accepted by the overwhelming majority of IPCC scientists: Most if not all warming of the early 20th century is due to natural, not human causes.

With a new awareness that climate could change in serious ways, in the early 1970s some scientists predicted a continued gradual cooling, perhaps a phase of a long natural cycle or perhaps caused by human pollution of the atmosphere with smog and dust.

When I first began to work with my Ph.D. adviser Barry Saltzman in the early 1990s, he, like many other climate researchers at the time, remained unconvinced that there was yet a detectable human influence on the climate... other scientists, such as NASA's James Hansen and Stanford University's Stephen Schneider, were convinced by the evidence already in hand that human - caused climate change was indeed now upon us.

An earlier version said that a majority of Canadians surveyed didn't believe that climate change was caused by humans.

SOON and BALIUNAS: An earlier 2003 contrarian paper by W. Soon and S. Baliunas was fallacious, published under an abuse of peer review, and is used as support for incorrectly denying that humans are the cause of recent global warming (see HERE).

Attachment theory developed by (BowlbyI980a) explained early childhood development and lays tremendous importance that a human infant has a biological need for protective attachment figure for survival and absence of such a figure can cause psychological difficulties in the child's emotional growth.