We’ve accidentally cooled the planet – and that’s about to stop

It is widely accepted that humans have been warming the planet for more than a century by burning coal, oil and gas. The Earth has already warmed by almost 1.2 degrees Celsius (2.2 degrees Fahrenheit) since pre-industrial times, and the planet is about to race past the hoped-for 1.5 degrees Celsius mark of warming. But … Read more

The world has successfully tackled a dangerous pollutant. But did it accidentally warm the planet in the process?

The enormous cargo ships that traverse the world’s oceans sometimes leave behind “trails”: long, wispy clouds that travel across the sky and last for at most a few days before disappearing. These ghost clouds look beautiful, but they are a visible sign of deadly air pollution. They are formed when tiny sulfur dioxide particles belched … Read more

The world has successfully tackled a dangerous pollutant. But did it accidentally warm the planet in the process?

The enormous cargo ships that traverse the world’s oceans sometimes leave behind “trails”: long, wispy clouds that travel across the sky and last for at most a few days before disappearing. These ghost clouds look beautiful, but they are a visible sign of deadly air pollution. They are formed when tiny sulfur dioxide particles belched … Read more