give some information about gobal warming
Answers
Answer:
Global warming is that the long-term heating of Earth's climate system observed since the pre-industrial period (between 1850 and 1900) thanks to human activities, primarily fuel burning, which increases heat-trapping greenhouse emission levels in Earth's atmosphere.
Answer:
Climate change includes both the global warming driven by human emissions of greenhouse gases, and the resulting large-scale shifts in weather patterns.[1] Though there have been previous periods of climatic change, since the mid-20th century the rate of human impact on Earth's climate system and the global scale of that impact have been unprecedented.
That human activity has caused climate change is not disputed by any scientific body of national or international standing.[5] The largest driver has been the emission of greenhouse gases. Over 90% of these emissions are carbon dioxide (CO
2) and methane, with fossil-fuel burning being the main source, and secondary contributions from agriculture and deforestation. Temperature rise is accelerated or tempered by climate feedbacks, such as loss of sunlight-reflecting snow and ice cover, increased water vapour (a greenhouse gas itself), and changes to land and ocean carbon sinks.