1. The main idea is that the Earth's climate is changing due to human activities, particularly the burning of fossil fuels, which release greenhouse gases that trap heat in the atmosphere.
2. Evidence includes rising global temperatures, melting glaciers and ice sheets, sea level rise, and more frequent extreme weather events.
3. Greenhouse gases such as carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (N₂O) trap heat in the atmosphere by absorbing and re-emitting infrared radiation.
4. Human activities like burning fossil fuels for energy, deforestation, and industrial processes significantly increase the concentration of greenhouse gases in the atmosphere.
5. Potential consequences include more intense heatwaves, droughts, floods, storms, loss of biodiversity, disruption of food and water supplies, and increased health risks.
6. Mitigation strategies involve reducing greenhouse gas emissions through renewable energy, energy efficiency, sustainable transportation, and reforestation.
7. Individuals can help by conserving energy, using public transport or electric vehicles, reducing waste, eating a plant-based diet, and supporting climate policies.
8. International cooperation is essential because climate change is a global problem requiring coordinated action across countries to reduce emissions and adapt to impacts.
9. Scientists use climate models, historical data from ice cores and tree rings, satellite observations, and measurements of atmospheric composition to study climate change.
10. Climate change affects ecosystems by altering habitats, shifting species distributions, disrupting food chains, and increasing extinction risks due to rapid environmental changes.
Parent Tip: Review the logic above to help your child master the concept of nova absolute zero worksheet.
