He said it is commonly thought that if modern humans could emulate pre-industrial or even pre-agricultural lifestyles, that atherosclerosis would be avoided.
Local food the post-industrial kind that competes with big chains, not the pre-industrial kind that has no competition is important for a different reason: it is the single most important and basic luxury good on the planet.
In the peak period from 1906 to 1910, the warming effect of the industrial soot throughout the Arctic was estimated at eight times that during the pre-industrial period.
BBC: Human activities have left a visible mark on the Arctic
It has the capacity to destroy a target country's electricity grids and so revert a post-industrial, technology-based country such as Israel or the US to a pre-industrial condition.
CENTERFORSECURITYPOLICY: An urgent memo to the next government
In 2011, concentrations reached a new high of 1813 parts per billion (ppb), 259% higher than pre-industrial levels.
Many analyses suggest an average rise of 1.5C since pre-industrial times is guaranteed.
The global average temperature has already risen by about 0.7C since pre-industrial times.
An EMP attack that could potentially send the US back to the pre-industrial age would become a real possibility.
Indeed, the rise of mobile technology has brought the very notion of work back to an almost pre-Industrial Revolution paradigm.
FORBES: Why Investing In A More Mobile Workforce Makes Sense
An EMP attack can destroy a state's electromagnetic grid and thus take a 21st-century economy back to the pre-industrial era.
And in a marvel of pre-industrial pickling, he would remain so, without withering, for the final two decades of his life.
Thus, over the course of a few decades, the concentration of the gas in the atmosphere will return to pre-industrial levels.
It suggests that CO2 has now reached concentrations of 390.9 parts per million, or 140% of the pre-industrial levels of 280ppm.
Whether his transformation fills him with commercial greed or with the purer appetites of a wild, pre-industrial age is never quite clear.
Even in pre-industrial populations, around a third of women were over 45.
Moreover, they lived over 200 years ago in a rural, pre-industrial country.
We recognize the scientific view that the increase in global average temperature above pre-industrial levels ought not to exceed 2 degrees C.
It is increasingly unlikely that global warming will be kept below an increase of 2C (3.6F) above pre-industrial levels, a study suggests.
After all, what do pre-industrial world temperature trends have anything to tell us about the effect of man-made Co2 on 20th century temperatures?
The World Bank warned recently that temperatures might rise by a catastrophic 4C (7F) above pre-industrial levels, given the rate of political progress.
By wiping out electrical systems and electronic devices, possibly coast-to-coast, America could be reduced to a pre-industrial society in the blink of an eye.
She was born in Manchester (a city whose pre-industrial character is marvellously evoked in the early chapters) and was set to work as a cloth-cutter.
Carbon dioxide emissions come from energy use, and energy is the key factor that makes modern economies so much more productive than pre-industrial societies.
FORBES: Carbon Tax: Will Tweedle Dum Snatch Defeat From the Jaws of Victory?
Levels of methane, a more potent greenhouse gas, hit a new record at 1, 813 parts per billion - more than two-and-a-half times the pre-industrial level.
"The atmospheric burden of greenhouse gases due to human activities has yet again reached record levels since pre-industrial time, " said World Meteorological Organization Secretary-General Michel Jarraud.
This kind of assault would, in effect, reduce our technology-based society to pre-industrial modes of communication and subsistence and leave hundreds of millions without food, money, or transportation.
The panel predicts that by 2100 temperatures will have increased a minimum of two degrees Celsius (3.6 degrees Fahrenheit) over pre-industrial levels regardless of what's agreed in Copenhagen.
Stopping the increase at 450 parts per million when the climate is generally expected to be no more than two degrees warmer than in pre-industrial times is the world's ambition.
As it currently stands, the UN Framework Convention on Climate Change has set a target of limiting the rise in global mean temperature to 2C (3.6F) above pre-industrial levels.
Carbon-dioxide levels in the atmosphere have grown 38 percent to approximately 389 parts per million today from 280 parts per million in 1850, the pre-industrial benchmark for climate change.
FORBES: Could Fish Fossils Help Us Better Predict Climate Change?
应用推荐