Climate Change Explained Simply (Causes and Effects)
Climate change refers to long-term shifts in temperatures and weather patterns, driven largely by human activity since the industrial era. Here is the science, simply.
The greenhouse effect
Certain gases in the atmosphere — like carbon dioxide and methane — trap heat from the sun, keeping Earth warm enough for life. Burning fossil fuels adds more of these gases, trapping extra heat and warming the planet.
Main causes
Most of the extra greenhouse gases come from a few activities.
- •Burning coal, oil, and gas for energy and transport.
- •Deforestation, which removes trees that absorb carbon dioxide.
- •Some farming and industrial processes that release methane and other gases.
Effects and responses
Effects include rising sea levels, more extreme weather, and disruption to ecosystems. Responses focus on cutting emissions (renewable energy, efficiency) and adapting to changes already underway.
Frequently asked questions
What is the greenhouse effect?
The way certain atmospheric gases trap heat near Earth's surface. It is natural and necessary, but extra greenhouse gases intensify it and warm the planet.
What is the main cause of climate change?
The burning of fossil fuels, which releases carbon dioxide and other heat-trapping gases.