Final answer:
Global warming is primarily caused by human activities, leading to an increase in greenhouse gases and a rise in global temperatures. This has various impacts, including the retreat of glaciers and extreme weather events.
Step-by-step explanation:
Global warming is primarily caused by human activities, such as the burning of fossil fuels and deforestation. This leads to an increase in greenhouse gases, such as carbon dioxide, in the atmosphere. The greenhouse gases trap heat and result in a rise in global temperatures. This leads to a wide range of impacts, including the retreat of glaciers, extreme weather events, shifts in natural habitats, rising sea levels, and potential displacements of human populations.
Global warming is leading to long droughts and extreme floods as part of its many impacts on the climate and environment, with the consensus being that these changes are primarily anthropogenic, due to greenhouse gases released from burning fossil fuels and deforestation.
Global Warming is a significant and complex issue affecting the earth's ecosystems and climate. One noticeable effect of global warming is C) Long droughts and extreme floods. These extreme weather events are among the various impacts such as altered global weather patterns, increased temperature, rising sea levels, and changes in food production due to the enhanced greenhouse effect, driven largely by rising levels of atmospheric carbon dioxide.
Most scientists agree that the current trends in global warming are primarily due to human activities, especially the burning of fossil fuels and deforestation, rather than being merely the result of natural variability in the climate. The greenhouse gases like carbon dioxide and methane contribute to warming Earth by trapping heat in the atmosphere. This anthropogenic warming has led to the consensus that changes observed since the mid-20th century are largely the result of human influence rather than natural causes such as solar intensity or earth's orbital changes.