Anthropogenic global warming is a long term phenomenon that is caused by the release of Carbon, in the form of Carbon Dioxide, from fossil deposits, though burning of fuels such as oil, natural gas, and coal. There are other human causes as well, but some of those relate to the use of fossil fuels (such as the leakage of methane gas from oil extraction operations, or from delivery pipelines).
The evidence for warming comes from a variety of sources, but mainly from land based thermometer stations from about the mid 19th century and later, higher tech measurements such as satellites.
The following graph is provided by the National Climatic Data Center and comes with its own caption attached, providing the original source:
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What is global dimming? It is a cooling effect that appears to have partially masked the effects of global warming. Global dimming is caused by a reduction in the amount of sunlight hitting the earth due to the presence of aerosolized particulate pollution, such as jet contrails.
Free on-line course on “decent work in global supply chains” offered by the Global Labour University
A free, two-month course on global supply chains is being offered on-line by the Global Labour University starting on January 12, 2017. The course is being taught in English by Penn State University Professor Mark Anner, one the leading labor-oriented researchers on the global economy. 
There is a new Gallup poll that together with earlier data from Gallup provides some interesting information about attitudes in the US about global warming.
I read this article in the NRO, and the author actually made some interesting arguments. 'Basically,' he said, 'I am questioning the premise that [global warming] is a problem rather than an opportunity.' Does he have a point?...
Just isn't explained well...a help me understand Plz.
The number is an estimate of how much warmer the planet is based on both measurements of the air at the surface of the land and the sea surface temperature.
One graph is for the whole planet, the other two are for the northern and southern hemisphere separately.
These charts show the definitive impact of industrialization since 1850. There is no doubt that man has sped up the global warming process, but how fast and was it going to happen anyway?