Sentences with phrase «explained by human activity»

Some greenhouse gases, such as industrial halocarbons, are only made by humans, and thus their presence in the atmosphere can only be explained by human activity.

Not exact matches

«The extreme selectivity of the modern extinction threat with respect to body size is best explained by the size bias in human hunting and fishing activities, which often preferentially target the largest animals in the oceans, or the largest animals within their respective taxonomic groupings,» said Payne.

However, once you get through the transition, your body can quickly adapt and learn to function just as well only eating a few times a day: This study explains that in participants after 48 - hours of fasting,» cognitive performance, activity, sleep, and mood are not adversely affected in healthy humans by two days of calorie - deprivation.»

She asked him to explain his dissent in the 2007 case in which the Supreme Court ruled that the Environmental Protection Agency had the authority to regulate carbon dioxide, the main greenhouse gas emitted by human activities, as a pollutant under the Clean Air Act.

The Cautious, Doubtful and Dismissive would most like to have an expert explain how scientists know that global warming is happening and is caused by human activities.

Lead author Dr Debbie Polson, of the University of Edinburgh's School of GeoSciences, said: «This study shows for the first time that the drying of the monsoon over the past 50 years can not be explained by natural climate variability and that human activity has played a significant role in altering the seasonal monsoon rainfall on which billions of people depend.»

It can only be explained by the increase in greenhouse gases due to human activities.

It says that CO2 does not have a significant effect on global temperatures and that global temperatures can be fully explained since about 1960 by entirely natural factors and do not require any human activity to explain what has occurred.

We have a solid 10,000 years of recent climate change to consider, and it shows several periods of greater warming than present, none explained by increased atmospheric CO2, or more obviously, by human activity.

Here we find a long list of climate components that «are now changing at rates and in patterns that are not natural and are best explained by the increased atmospheric abundances of greenhouse gases and aerosols generated by human activity during the 20th century.»

Maybe you are misunderstanding hysteresis thinking we're still coming out of the LIA, just overshooting the «recovery» by a huge margin for some reason you haven't yet explained (as long as it's not human activity, anything will do).

One is suppose to believe that the blade of hockey stick is all caused by human activity - it's the whole reason the hockey stick was fabricated, the amazing rise in temperature could only be explained as being the result of human activity - industrial activity [in accordance Luddism fantasy].

Although natural variations in the solar output can explain most of the temperature variations over the past centuries, it appears that global warming by heat - trapping gases, emitted by human activity, is required to explain the sharp rise in global temperatures during the 1990s.

Human activities are affecting the Earth's climate and warming the atmosphere and oceans in ways that can not be explained just by nature.

A fact sheet released December 20 by the Health and Human Services Office for Civil Rights and the Office of the National Coordinator for Health Information Technology explains a number of hypothetical scenarios in which protected health information (PHI) may be shared in support of public health activities or other important public health policies.