The global environmental challenge among the options listed is climate change. Here's why:
1. **Climate Change:** Climate change refers to long-term changes in temperature, precipitation, and other atmospheric conditions on Earth. It is a significant global environmental challenge because it affects ecosystems, weather patterns, sea levels, and the frequency of extreme weather events like hurricanes and droughts. Human activities, such as burning fossil fuels and deforestation, contribute to the increase in greenhouse gases like carbon dioxide, which leads to global warming and climate change.
While acid rain, water pollution, and aquifer depletion are also environmental issues, climate change stands out as a pressing global challenge due to its wide-ranging impact on the planet and its inhabitants. Addressing climate change requires international cooperation, sustainable practices, and mitigation efforts to reduce greenhouse gas emissions and adapt to the changing climate.
