Question

what is global warming and their effects

Answer 1

Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth.The effects of global warming are the environmental and social changes caused by human emissions of greenhouse gases. There is a scientific consensus that climate change is occurring, and that human activities are the primary driver.Many impacts of climate change have already been observed, including glacier retreat,changes in the timing of seasonal events (e.g., earlier flowering of plants), and changes in agricultural productivity.

Answer 2

Answer:

what is global warming and their effects

Global warming, the gradual heating of Earth's surface, oceans and atmosphere, is caused by human activity, primarily the burning of fossil fuels that pump carbon dioxide (CO2), methane and other greenhouse gases into the atmosphere. Despite political controversy about climate change, a major report released Sept.