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Climate Change
Quick questions on Evidence for climate change explained: N(A)-Level Geography
7short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are rising temperatures?Show answer
The clearest evidence is the record of global temperature. Thermometers around the world show that the average global temperature has risen by about 1 degree Celsius since the late 1800s, and the warmest years on record are recent. This is the most direct sign that the climate is warming.
What is melting ice?Show answer
A warming world melts ice, and this is happening:
What are rising sea levels?Show answer
The sea is rising for two reasons: warmer water expands and takes up more space, and melting ice on land adds more water to the oceans. Tide gauges and satellites both record this rise, which threatens low-lying coasts.
What is evidence from the past?Show answer
Scientists also study the past climate using natural records such as ice cores (bubbles of old air trapped in ice) and tree rings. These show how temperature and carbon dioxide have changed over thousands of years and confirm that recent warming is unusually fast.
What is q1?Show answer
State two lines of evidence that the climate is warming. [2 marks]
What is q2?Show answer
Explain why a single hot day is not good evidence of climate change. [2 marks]
What is q3?Show answer
Explain why rising sea levels are evidence of a warming world. [2 marks]
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