Stop global warming public service ads
Global warming refers to the global warming. Nearly 100 years, the global average temperature has experienced cold - warm - cold - warm twice fluctuations, the overall upward trend.
Global warming is the main reason for humanity in nearly a century since the large-scale use of fossil fuels, large amounts of greenhouse gas emissions. The consequences of global warming will redistribute global precipitation, melting permafrost and glaciers, rising sea levels, endangering not only the balance of natural ecosystems, but also threaten human food supply and living environment.
