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Other environmental effects of transport systems include traffic congestion and automobile-oriented urban sprawl, which can consume natural habitat and agricultural lands. By reducing transportation emissions globally, it is predicted that there will be significant positive effects on Earth's air quality, acid rain, smog and climate change. [10]
Traffic jam - traffic on the Cairo-Assiut highway is blocked due to fog. Traffic congestion on Marginal Pinheiros, near downtown São Paulo. According to Time magazine, São Paulo has the world's worst traffic jams. [12] Drivers are informed through variable message signs that display the prevailing queue length.
In the 1980s, the terms global warming and climate change became more common, often being used interchangeably. [29] [30] [31] Scientifically, global warming refers only to increased surface warming, while climate change describes both global warming and its effects on Earth's climate system, such as precipitation changes. [28]
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World leaders are meeting in Paris this month in what amounts to a last-ditch effort to avert the worst ravages of climate change. Climatologists now say that the best case scenario — assuming immediate and dramatic emissions curbs — is that planetary surface temperatures will increase by at least 2 degrees Celsius in the coming decades.
The cause of the traffic jam was reported to be a spike in traffic by heavy trucks heading to Beijing, along with National Highway 110's maintenance work that began five days later. [3] The road construction which reduced the road capacity by 50% [2] contributed heavily to the traffic jam and was not due to be completed until mid-September. [5]
Many species will not cross the open space created by a road due to the threat of predation [43] and roads also cause increased animal mortality from traffic. [44] This barrier effect can prevent species from migrating and recolonising areas where the species has gone locally extinct as well as restricting access to seasonally available or ...
As the warming from CO 2 increases, carbon sinks absorb a smaller fraction of total emissions, while the "fast" climate change feedbacks amplify greenhouse gas warming. Thus, the effects counteract one another, and the warming from each unit of CO 2 emitted by humans increases temperature in linear proportion to the total amount of emissions.