please give a note on any topic related to natural resource like global warming, acid rain etc from intro , advantages and disadvantages precautions
Answers
Explanation:
The effects of climate change span the physical environment, ecosystems and human societies. It also includes the economic and social changes which stem from living in a warmer world. Human-caused climate change is one of the threats to sustainability.[6][7]
The primary causes[1] and the wide-ranging effects[2][3] of global warming and resulting climate change. Some effects constitute feedback mechanisms that intensify climate change and move it toward climate tipping points.[4]
Many physical impacts of global warming are already visible, including extreme weather events, glacier retreat,[8] changes in the timing of seasonal events (e.g., earlier flowering of plants),[9] sea level rise, and declines in Arctic sea ice extent.[10] The future impact of global warming depends on the extent to which nations implement prevention efforts and reduce greenhouse gas emissions. Ocean acidification is not a consequence of global warming, but instead has the same cause: increasing atmospheric carbon dioxide.
Climate change has already impacted ecosystems and humans as well.[11] In combination with climate variability, it makes food insecurity worse in many places[12] and puts pressure on fresh water supply. This in combination with extreme weather events, leads to negative effects on human health. Rising temperatures threaten development because of negative effects on economic growth in developing countries.[12] The social impact of climate change will be further affected by society's efforts to prepare and adapt.[13][14] Global warming already contributes to migration in different parts of the world.[15]
Most of the policy debate concerning climate change mitigation has been framed by projections for the twenty-first century. The focus on a limited time window, obscures some of the problems associated with climate change. Policy decisions made in the next few decades will have profound impacts on global climate, ecosystems and human societies - not just for this century, but for the next millennia, because near-term climate change policies significantly affect long-term climate change impacts.[13][16][17] Stringent mitigation policies might be able to limit global warming (in 2100) to around 2 °C or below, relative to pre-industrial levels.[18][19] Without mitigation, increased energy demand and extensive use of fossil fuels[20] might lead to global warming of around 4 °C.[21][22] With higher magnitudes of global warming, is more likely that societies and ecosystems will encounter limits to how much they can adapt.[23] Stronger warming increases the risk of negative impacts.[24]