Sentences with phrase «percent in the past century»

It concluded that atmospheric carbon dioxide concentrations had already increased by about 25 percent in the past century, and continued use of fossil fuels would lead to substantial temperature increases in the future.

It has expanded by about 10 percent in the past century, according to a study by researchers at the University of Maryland published March 29, 2018, in the Journal of Climate.

Not exact matches

The drug at the heart of four lawsuits in New Jersey is insulin — «a century - old medicine that for most of its history cost $ 15 or less,» write Barrett and Langreth, but «whose list price has risen more than 270 percent over the past decade.»

The New York City Board of Elections lists his vote total as 726,361 with 98.4 percent of districts reporting, which could wind up resulting in the second - smallest total garnered by a victorious Democrat in the past century.

«The early 20th century got a lot of flooding,» but only 25 percent of the increase in flood magnitude over the past century can be explained by those climate patterns, Munoz says.

7 The motor vehicle fatality rate in the United States — the average number of deaths per passenger - mile of driving — has dropped by roughly 80 percent in the past half century.

A 100 ppm, or 0.01 percent, rise in CO2 levels may not seem like much but it has already been enough to warm the globe by roughly a degree Celsius over the past century.

The massive marine mammal's numbers have increased by 400 percent in the past quarter - century — and it's not the only such success story

In contrast, France received less than 90 percent of its average precipitation total for 2015, making this one of the 10 driest years for the country in the past half centurIn contrast, France received less than 90 percent of its average precipitation total for 2015, making this one of the 10 driest years for the country in the past half centurin the past half century.

According to the heads of the big three speed - dating companies, the industry has grown more than 400 percent in the past two years, making it the first dating phenomenon unique to the 21st Century.

Teacher salaries have increased more than 42 percent in constant dollars over the past half century, while educators» working conditions, health plans, and retirement arrangements have become ever more commodious.

As Chester E. Finn Jr. first explained, in the past half - century our K — 12 public education student population has grown 50 percent while our teacher corps has grown nearly 300 percent, largely in pursuit of smaller classes.

«The amount of rain falling in the heaviest downpours has increased approximately 20 percent on average in the past century, and this trend is very likely to continue, with the largest increases in the wettest places.»

Moreover, in order to be part of the 96 percent expert consensus, they must explicitly agree that humans are responsible for the majority of the global warming over the past half - century (a position the latest IPCC report took with 95 percent confidence).

On average in the United States, the amount of rain falling during the heaviest 1 percent of rainstorms has increased nearly 20 percent during the past 50 years — almost three times the rate of increase in total precipitation.4, 5 The Midwest saw an even larger average increase of 31 percent, surpassed only by the Northeast (at 67 percent).4 Scientists attribute the rise in heavy precipitation to climate change that has already occurred over the past half - century.6

Carbon - dioxide - emitting fuels, such as coal, oil, and natural gas, provided 87 percent of America's energy needs in the past decade, and have been the overwhelming supplier for over a century.

But even though 84 percent of the poll's respondents said they believed the world's temperature has been rising over the past century, only four in ten said they are «extremely» or «very» sure it is happening.

Noting that the current atmospheric concentration of CO2 is higher than it's been in the past 650,000 years, the IPCC predicts that human - induced climate change could spell extinction for 20 to 30 percent of the world's species by the end of this century, cause increasingly destructive weather patterns, and flood coastal cities.

According to NASA, «Multiple studies published in peer - reviewed scientific journals show that 97 percent or more of actively publishing climate scientists agree: Climate - warming trends over the past century are extremely likely due to human activities.»

, wind farms covering 6 percent of the entire land surface of the 48 contiguous states, an outrageous and unrealistic increase in ecologically harmful hydroelectric power, and a build out of electricity generation capacity that hurtles along at 14 times the average rate of capacity expansion in the past half - century.

«Business - as - usual» scenarios, with fossil fuel carbon dioxide emissions continuing to increase about 2 percent per year as in the past decade, yield additional warming of 2 or 3 °C this century and imply changes that constitute practically a different planet.

However, 97 percent of climate scientists agree that humans have changed Earth's atmosphere in dramatic ways over the past two centuries, resulting in global warming.

Such a dramatic loss can already be seen in the nearby Spanish Pyrenees Mountains, where close to 90 percent of the glacier cover has disappeared over the past century.

Business - as - usual scenarios, with fossil fuel (CO2) emissions continuing to increase at 2 percent per year as in the past decade, will yield additional warming of two or three degrees this century.

«Multiple studies published in peer - reviewed scientific journals show that 97 percent or more of actively publishing climate scientists agree: Climate - warming trends over the past century are extremely likely due to human activities.»

Scientists also discern a greenhouse fingerprint in downpours, which in the continental United States have increased 20 percent over the past century.

Overseas born Aussies are now at their highest number in over a century, making up twenty eight percent of the overall population - and those born in China have doubled in the past decade.

In the Four Corners region, two long droughts that lasted more than 100 years are associated with collapse of the Anasazi Indian civilization, she added, noting that the recently concluded 20th Century was around 15 percent wetter than the average for the past thousand years.