Preventing global warming from becoming “dangerous” may have just got significantly harder after new research suggested climate scientists have been using the wrong baseline temperature. The amount of global warming is often measured relative to the late 19th century even though this is about 100 years after the start of the industrial revolution, when humans started burning large amounts of fossil fuels. Now an international team of scientists has suggested that the Earth’s true “pre-industrial” temperature could be up to 0.2 degrees Celsius cooler. That would mean that instead of about 1C of global warming, the planet’s average temperature may have risen by up to 1.2C. According to the Paris Agreement on climate change, the world should try to limit global warming to as close to 1.5C as possible to avoid its worst effects, such as deadly heatwaves, sea level rise that threatens coastal cities and more violent storms.
Independent 24th July 2017 read more »
Fears have been raised that the UK could soon see a repeat of the sort of flooding that has hit in recent years after forecasters predicted a one-in-three chance there would be a new record set for monthly rainfall during coming winters.
Guardian 24th July 2017 read more »