Sentences with phrase «decades as a result of human activities»

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

Not exact matches

... 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.

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

Scientific consensus shows that as a result of human activities, GHG concentrations in the atmosphere are at record high levels and data shows that the Earth has been warming over the past 100 years, with the steepest increase in warming in recent decades.

A certain amount of continued warming of the planet is projected to occur as a result of human - induced emissions to date; another 0.5 °F increase would be expected over the next few decades even if all emissions from human activities suddenly stopped, 11 although natural variability could still play an important role over this time period.12 However, choices made now and in the next few decades will determine the amount of additional future warming.

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.