Question

topic :climate changes
3 cause and 3 affect

Answer 1

Here are three main causes of climate change and three major effects, with a short explanation for each:

Causes
- Burning of fossil fuels (coal, oil, natural gas): Releases large amounts of CO2 and other greenhouse gases that trap heat in the atmosphere. Major sources are electricity generation, transport, and industry.
- Deforestation and land‑use change: Cutting forests for agriculture or development reduces carbon storage (less CO2 absorbed) and often releases stored carbon when trees are burned or decay.
- Agriculture and livestock: Produce significant methane (CH4) from ruminant digestion and rice paddies, and nitrous oxide (N2O) from fertilized soils—both potent greenhouse gases.

Effects
- Rising global temperatures (global warming): Higher average temperatures drive many downstream impacts (earlier snowmelt, longer heat seasons).
- Sea‑level rise and coastal flooding: Thermal expansion of warming ocean water plus melting ice sheets/glaciers raise sea levels, increasing coastal erosion and flooding risk.
- More frequent/intense extreme weather and ecological disruption: Stronger heatwaves, heavier rainfall and storms, droughts in some regions, and loss of habitats leading to biodiversity declines and impacts on agriculture and human health.

If you want, I can expand any item with data, regional examples, or mitigation/adaptation options.