Global warming

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Much of the ‘smart cities’ rhetoric is dominated by the economic, with little reference to the natural world and its plight. Ase from www.shutterstock.com

Taking the city’s pulse: we need to link urban vitality back to the planet

The rhetoric of 'smart cities' is dominated by the economic, with little reference to the natural world and its plight. Truly smart and resilient cities need to be more in tune with the planet.
Scorching temperatures in Jammu, northern India. This month has seen records smashed in nearby Rajasthan. Jaipal Singh/EPA

What is going on with India’s weather?

The city of Phalodi has set a temperature record for India, hitting 51℃. Until now, India's smog problem has curbed extreme temperatures. But that could be about to change.
More than 160 nations will sign the Paris Agreement on its opening day – a record for a United Nations treaty. Aotearoa/Wikimedia Commons

The Paris Agreement signing ceremony at a glance

More than 160 countries are expected to sign the Paris Agreement in New York on April 22. But enough countries will also need to ratify the treaty domestically before it can become international law.
Glaciers have been a major contributor to sea-level rise. Knut Christianson

What does the science really say about sea-level rise?

Could sea levels really rise by several metres this century. Probably not, although this century's greenhouse emissions could potentially set the stage for large rises in centuries to come.
Extreme drought, a predictable impact of El Niño, fuels wildfires on the island of Borneo on October 14. NASA/GSFC/LaRC/JPL-Caltech, MISR Team

What North America can expect from El Niño

The third-ever 'super' El Niño is under way. Here's how it will affect your region in the US and how global warming affects this and future El Niños.

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