Global warming is a long-term rise in Earth's temperatures caused mainly by human-caused greenhouse gas emissions. Effects include increased temperatures and temperature extremes, more extreme weather, ice melting, and sea level rise. Individual actions and policy changes like expanding renewable energy and limiting carbon emissions can help prevent further global warming. Disasters occur when hazards like natural events overwhelm vulnerable communities' ability to cope. Disaster management includes preparing by understanding risks, making plans, and assembling emergency kits; responding during events; and recovering after via rebuilding. Local governments and groups play key roles in disaster management at the community level.