Solar Impulse 2 was on Monday approaching the end of its epic bid to become the first sun-powered airplane to circle the globe without a drop of fuel to promote renewable energy.

The first solar-powered plane to circle the world took off from Cairo on Sunday for Abu Dhabi, in the final leg of its journey.

Earlier this year media outlets around the world announced that February had broken global temperature records by a shocking amount. March broke all the records, too. In June our screens were covered with surreal images of Paris flooding, the Seine bursting its banks and flowing into the streets. In London, the floods sent water pouring into the tube system right in the heart of Covent Garden. Roads in south-east London became rivers two metres deep.

With such extreme events becoming more commonplace, few deny climate change any longer. Finally, a consensus is crystallising around one all-important fact: fossil fuels are killing us. We need to switch to clean energy, and fast.

The alarm sounded and in a blink the base thrummed with activity. Smokejumpers grabbed helmets, donned kevlar suits, tested radios and strapped on parachutes. A speaker blasted Wagner’s Ride of the Valkyries.

“Final checks, OK, let’s go,” boomed a command. Within minutes eight smokejumpers were airborne in a Twin Otter, climbing into a blue Idaho sky. The plane soon returned, empty, to pick up another eight jumpers.

This past month nudged out June 2015 as the warmest on record, according to data just released by NASA.

That makes the first six months of 2016 the warmest first half of any year since 1880. June’s record warmth also means we’ve experienced nine months in a row of record setting temperatures.

Animal and plant species are declining so quickly that world biodiversity loss is no longer within a “safe limit” and could start to threaten much of the planet’s ability to support humans, according to a major new study.

Last month was the hottest June in modern history, marking the 14th consecutive month that global heat records have been broken, the U.S. National Oceanic and Atmospheric Administration said Tuesday.

"The globally averaged temperature over land and ocean surfaces for June 2016 was the highest for the month of June in the NOAA global temperature dataset record, which dates back to 1880," the agency said in a statement.

By Benjamin Franta

One morning in the summer of 2014, I found myself in the city of Tacloban in the Philippines. The city and surrounding area had been devastated less than a year earlier by Super Typhoon Yolanda. Thousands had been killed; bodies were found for months afterwards.

Scorching wildfires that are raging throughout the American south-west are being fueled by climate change and require new strategies from states to prevent ever-greater destruction of people’s lives and property, a group of experts have warned.

High temperatures, drought and wind have combined to create a number of fires that have caused at least two deaths in California. The first large wildfire of the summer has this week broken out in northern California, burning through more than 1,200 acres and threatening thousands of homes in an area around 50 miles north-east of Sacramento.

The Solar Impulse 2 landed in Cairo on Wednesday for its penultimate stop as the solar-powered plane nears the end of its marathon tour around the world.