US energy department warns of potential for outages in PJM Interconnection, serving 67 million from DC to Chicago

The risk ⁠of power outages ⁠is expected to ​escalate across a broad swath of the United States on Wednesday as intense heat will test the capacity of electricity supplies ⁠serving millions of homes and businesses from the midwest through the mid-Atlantic.

The US Department of Energy warned of the potential for heightened blackout risks in ⁠the PJM Interconnection, the largest US electric grid, which serves 67 million people in ​a territory stretching from Washington DC to ‌Chicago.

As well as being quieter, cheaper to run and easier to clean, induction cookers can cut kitchen temperatures by up to 10C

Leaping flames, searing heat, copious sweat and scorchingly inventive swearing – restaurant kitchens are never a place for the faint-hearted, but this summer they have been sweltering in successive heatwaves to a dangerous degree.

Some restaurants, cafes and bakeries in the UK grew so hot that they were forced to close, or reduce their hours, for the safety of their staff. There is still no maximum working temperature, despite calls from the TUC, and tens of thousands of kitchen staff are thought to have carried on working in “furnace-like” conditions.

London mayor points to ‘terrifying scenes’ this summer amid speculation Burnham may back Jackdaw and Rosebank projects

• Sadiq Khan: This burning summer is the proof: the voices of climate denial aren’t just delusional, they’re deadly

Sadiq Khan has called on the government to commit to revamped climate action and to reduce the UK’s reliance on oil and gas, as the UK endures a summer of drought, wildfires and heatwaves.

Writing in the Guardian, the mayor of London said that Andy Burnham’s administration must reaffirm its commitment to net zero and make clear it will continue to reduce the UK’s reliance on oil and gas “to get Britain back on track.”

Farms and rooftop panels contribute 14.4% to the grid – and figures reveal a surge in new installations

Solar energy supplied more power to Great Britain’s grid in July than in any previous month as households turned to rooftop panels to cut their energy bills.

Solar farms and rooftop panels provided 14.4% of the country’s electricity after some parts of the UK recorded almost twice the average sunshine hours for the time of year.

Labour MPs fear No 10 team lack up-to-date energy insight and don’t fully recognise voters’ climate concerns

Andy Burnham was told he could face the first revolt of his premiership as Labour MPs and climate experts condemned his apparent support for renewed drilling for oil and gas.

As the UK suffers through drought, fires and heatwaves, the prime minister gave the strongest indication yet on Friday he was minded to allow new drilling. His comments came just hours before the UN secretary-general warned “every new fossil fuel project” made heatwaves more dangerous.

Emergency crews say situation remains ‘dynamic’ as more than 100 firefighters battle Dunwich Heath blaze

A wildfire near Britain’s biggest nuclear power station has caused “total devastation” to one of the UK’s most important landscapes, as fire crews said the situation remained “dynamic”.

More than 100 firefighters have been battling the blaze on Dunwich Heath, near Leiston, on the Suffolk coast since Wednesday evening. The fire service said on Friday afternoon the situation was stabilising but remained a “major incident” that was “dynamic and potentially changeable”.

Neso denies allegations aired by Tory MP that staff took part in cover-up over decision-making in heatwave

In a control room in Wokingham, Berkshire, staff work around the clock, minute by minute, to align Great Britain’s fluctuating power supplies with its ever-changing demand.

However, as households struggle to adapt to soaring summer temperatures, staff at the government-owned National Energy System Operator (Neso), tasked with keeping the lights on, have faced the kind of challenge usually reserved for the country’s coldest winter nights in recent weeks.

Government to launch campaign to help people cope with events such as weather emergencies or cyber-attacks

The British public should begin taking “small but important steps” to secure and protect water, power supplies and basic phone signal in case of further severe weather emergencies, national crises or cyber-attacks, Downing Street has said.

Darren Jones, the chief secretary to the prime minister, told MPs “the risks we face from climate change cannot be underestimated”, and warned of the “significant and prolonged disruption to essential services” extreme weather events could cause.

The scientific consensus is that burning fossil fuels drives the climate crisis, yet the world’s biggest oil companies are planning to increase production

As the world swelters in ever more dangerous heat, why are oil companies being allowed to turn up the gas instead of paying for the consequences of their greed?

That ought to be the question on everyone’s minds amid baking heat domes over much of the northern hemisphere, temperature records being smashed day after day, children dying in locked cars, hospitals filling with heatstroke victims and emergency services tackling wildfires.

As summers become hotter, air conditioner sales are booming. If you’re looking to invest, here’s what to consider

When a heatwave struck the UK this week, Jon Connorton, a software developer, began monitoring temperatures inside his east Hampshire terrace house. With some rooms reaching close to 40C, it was time to deploy the air conditioner. “We just wheel it out in emergencies,” he said. “We were having trouble sleeping.”

Connorton and his wife have a portable air conditioner. These plug-in devices cool interior air by removing heat from it and blowing that heat outside, typically via a large hose slung from a window or door.

Government should fit solar panels to power air con units where vulnerable people live, say green advocates

As the country baked in record May temperatures, climate campaigners have said the UK government needs to urgently start installing air conditioning units in schools, care homes and places where vulnerable people live.

In 2022, when temperatures spiked above 40C (104F), about 3,000 people in Britain died of causes associated with heat. Studies show air conditioning can cut heat related deaths by 75%.