Sentences with phrase «as a result of human activity»

The scientists found greenhouse gases in the atmosphere as a result of human activity have increased the risk of extreme rainfall in the southern part of the country by about 25 per cent.

If ocean noise continues to increase as a result of human activities, whales may soon have nowhere to go.

CO2 remains in the atmosphere longer than the other major heat - trapping gases emitted as a result of human activities.

The hurricane is spinning over waters that have warmed in the last century as a result of human activity.

Global temperatures are rising almost exactly as we predicted they would over fifteen years ago as a result of human activity.

Once characterized by isolation, these unique ecosystems face increased connectivity as a result of human activities and natural geological shifts.

The number one source of carbon emissions as a result of human activity is transport that is based on fossil fuels: cars, trucks, trains and airplanes.

However, long - term climate change over many decades will depend mainly on the total amount of CO2 and other greenhouse gases emitted as a result of human activities.

Methane levels have also risen as a result of human activity, but have tended to level out in recent years.

Despite a common perception in Washington, DC, huge majorities of Americans «still believe the earth has been gradually warming as the result of human activity and want the government to institute regulations to stop it,» Jon Krosnick, the Stanford University... Continue reading →

This statement remains valid, as does the fact that widespread loss of glacial mass and reduction in snow cover will accelerate throughout the 21st century largely as a result of human activities that are warming our Earth's atmosphere.

``... a number of scientific studies indicate that most global warming... is due to the great concentration of greenhouse gases released mainly as a result of human activity... these gases do not allow the warmth of the sun's rays reflected by the earth to be dispersed in space.

«Global atmospheric concentrations of carbon dioxide, methane and nitrous oxide have increased markedly as a result of human activities since 1750 and now far exceed pre-industrial values determined from ice cores spanning many thousands of years.»

Altogether, researchers estimate that 50,000 species have invaded the United States as a result of human activities.

Ammonia and sulphur emissions have increased considerably over the past decades as a result of human activities.

Also, a year ago, the Stanford team released poll findings indicating that three out of four Americans believe that «the Earth has been gradually warming due primarily or at least partly as the result of human activity and want the government to institute regulations to stop it.»

Over the past 500 years, approximately 500 land - based animal species have gone the way of the dodo, becoming extinct as a result of human activity.

These nutrients end up in rivers and streams as the result of human activities and can cause algal blooms, loss of seagrass and low oxygen levels, which can lead to large numbers of fish and other organisms dying.

Indeed, their increased production as the result of human activity, along with increased emissions of other ozone - depleting substances (ODS), is tipping the balance: ozone molecules in the stratosphere are being broken up faster than they are formed.

Arsenic occurs naturally in the environment, and can also be present as the result of human activity, such as the use of arsenic - containing pesticides.

The report states, «The uptake of carbon by the world's oceans as a result of human activity over the last century has made them more acidic.

''... between 0.06 and 0.1 degrees Celsius, a very small fraction of the warming we're due to experience as a result of human activity.»

After confirming in the first volume on «The Physical Science Basis» that climate change is occurring now, mostly as a result of human activities, this volume illustrates the impacts of global warming already under way and the potential for adaptation to reduce the vulnerability to, and risks of climate change.

Then, perhaps in the early years of the next century, the climate could warm up a little as a result of human activity, especially the greater amount of carbon dioxide that will be released from the burning of fossil fuels.

[11][12] The scientific consensus that global warming is occurring as a result of human activity remained unchanged at the end of the investigations.

Seven in ten Americans think that global warming is happening, and almost three in five think that, if it is happening, it is mostly owing to human activity, but only about one in seven know that nearly all climate scientists agree that global warming is happening as a result of human activity.

«Marshes, swamps and bogs emit about 1.3 billion tonnes of CO a year as a result of human activity that drains them.

But they do not alter the underlying long - term trend of rising temperatures due to climate change as a result of human activities»

They say it shows the Earth is constantly in cycles of cooling and heating, and they dispute the notion that global temperatures are consistently rising as the result of human activity.

It's the first time in the history of earth in which there has been such a rapid period of warming as a result of human activity;

And the researchers suggest the cyclone shift may be linked to that growth, which is connected to more heat - trapping greenhouse gases in the atmosphere as a result of human activity.

Largely as a result of human activities they are now rising at a rate of over 4 % per decade.

The major greenhouse gases the United States emits as a result of human activity and that are included in U.S. and international emissions estimates are:

... A number of scientific studies indicate that most global warming in recent decades is due to the great concentration of greenhouse gases (carbon dioxide, methane, nitrogen oxides and others) released mainly as a result of human activity... Doomsday predictions can no longer be met with irony or disdain.

«I agree that carbon dioxide is a greenhouse gas, that greenhouse gas concentrations in the atmosphere are increasing as a result of human activities — primarily burning coal, oil, and natural gas — and that this means the global mean temperature is likely to rise,» Ebell said in the statement released by CEI yesterday.

In the first study of its kind, scientists have calculated the amount of carbon absorbed by the world's tropical forests and the amounts of greenhouse gas emissions created by loss of trees, as a result of human activity.

The IPCC summary for policymakers definitively proclaimed the globe to be warming as a result of human activity, now the science shifts to impacts and solutions

The preponderance of scientific evidence makes clear that the earth is warming as a result of human activity.

Even allowing for the relative strength of the effects, CO2 is still responsible for two - thirds of the additional warming caused by all the greenhouse gases emitted as a result of human activity.

The ocean is changing as a result of human activities, including fisheries, pollution, smoking (that's why we encourage people to use e-cigs) and the release of greenhouse gases, such as carbon dioxide (CO2).

Earthquakes may occur naturally or as a result of human activities.

Though the vast majority of climate scientists agree that the Earth's climate is changing as a result of human activities that increase the amounts of greenhouse gasses into the atmosphere, researchers like Soon foment debate by publishing alternate hypotheses or denials.