Global Warming (Part I) | General Science & Ability by Mian Shafiq | Study River

This video provides an in-depth overview of global warming - its causes, underlying mechanisms, and wide-ranging impacts. It begins by defining global warming as the rise in average global temperatures, primarily caused by increasing concentrations of greenhouse gases in the atmosphere.
The lecture discusses the greenhouse effect in detail - how gases like carbon dioxide, methane, and nitrous oxide trap heat from the sun's radiation by preventing it from escaping the Earth's atmosphere, leading to a gradual temperature increase. Data is presented showing the alarming rise in atmospheric carbon dioxide levels from 380 ppm in 2005 to over 414 ppm in 2020, indicating the human contribution to the enhanced greenhouse effect driving global warming.
The video explains how human activities like burning fossil fuels for electricity and transportation, deforestation, industrial processes, agriculture, and waste generation are the major sources of greenhouse gas emissions. It highlights the varying global warming potential of different gases, with fluorinated compounds having a particularly high heat-trapping capacity.
The multitude of impacts arising from global warming are covered, including changes in precipitation patterns affecting agriculture and food security, loss of biodiversity, water scarcity, sea level rise, and potential conflicts over depleting freshwater resources. Visualizations depict the clear upward trends in average global temperatures since the 1800s and rising sea levels over the past century.
Overall, this comprehensive lecture provides a robust scientific understanding of the causes, greenhouse gas mechanisms, emission sources, and far-reaching environmental, ecological, and societal consequences of global warming.
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[@csspmspreparation9106]

thanks you so much sir....very imformative.....plz upload sir waqs lectures daily

[@internationalrelationsir1260]

Sir when will you start new session of GSA?

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Please contact admission office at 0310 1713000 | 0315 7773680

[@imranali1560]

Sir apka lecture bore karha ha, mare khyal se apki knowledge mein confidence ki kami ha