The largest U.S. solar power site and other clean energy projects could be built on lands owned by the Department of Energy, including where components for Cold War-era atomic bombs were developed, the agency said on Friday.

The DOE said it has identified about 70,000 acres (283 square kilometers) of land across five states, most of which has been used as a buffer for national security purposes, that could eventually host clean energy projects including solar, wind and nuclear power.

“These sites are all safe now, they are completely clean and ready for redevelopment,” U.S. Energy Secretary Jennifer Granholm said at an event at her department’s headquarters in Washington, D.C.

Granholm presented the Cleanup to Clean Energy plan to help achieve President Joe Biden’s clean electricity goals. The administration wants the U.S. grid to run on clean energy by 2035. Many of the sites already have power customers and work forces, officials said.

The event included developers of renewable power and nuclear power, involving participants with experience implementing clean electricity projects generating at least 200 megawatts.

The DOE identified lands at the following sites for potential development:

-Hanford Site, Richland, Washington

-Idaho National Laboratory, Idaho Falls, Idaho

-Nevada Nuclear Security Site, Nye County, Nevada

-Savannah River Site, Aiken, South Carolina

Chinese forecasters on Saturday warned of the approach of Tropical Storm Khanun, expected to rapidly gain typhoon strength and strike China’s densely populated coast sometime next week.

Khanun, now more than 1,000km (620 miles) east of the Philippine archipelago in the Pacific, may make landfall in China’s economically important Zhejiang province as early as Tuesday, Chinese forecasters said.

Typhoons, as hurricanes are called in East Asia, are common in China, often threatening big cities.

As many as 150 Chinese cities suffer from flooding each year due to inadequate drainage systems, disrupting local economies and even claiming lives.

As the Western Pacific enters its peak typhoon season in August and September, scientists warn storms could grow more frequent and violent due to global warming. Khanun would be the third typhoon to hit China after the powerful Doksuri on Friday and Talim just a week earlier.

Global average sea surface temperatures hit 21 Celsius (69.8 Fahrenheit) in late March and remained at record levels for the time of year throughout April and May. In the Florida Keys last week, the surface ocean temperature soared to abnormally high levels.

Temperatures on land have also smashed records this year as heatwaves ravaged much of the Northern Hemisphere – from Canada and the United States to the Mediterranean, India and China.

A remote township in northwest China endured temperatures of 52.2C earlier in July, setting a new record for the country.

Ford Motor (F.N) said Friday it is recalling 870,000 F-150 trucks in the United States because of the risk of an unexpected activation of the electric parking brake due to a potential wiring issue.

The recall covers 2021 through 2023 model year F-150 trucks, according to a filing with the National Highway Traffic Safety Administration (NHTSA).

It covers trucks equipped with a single exhaust system. Contact with the rear axle housing may damage the wiring harness, causing the electric parking brake to activate unexpectedly, the automaker said.

Ford said it has received 918 warranty claims and three field reports for the wire chafing condition in North America. Of those, 299 indicated the electric parking brake had activated unintentionally including 19 while driving.

Ford said it is not aware of crashes or injuries related to the recall.

Dealers will install a protective tie strap, tape wrap and replace the harness as necessary.

Southwest Airlines (LUV.N) has exercised options for the delivery of 30 Boeing 737 MAX 7 planes next year, and converted 24 existing MAX 7 orders to MAX 8, the company said in an SEC filing on Friday.

The move comes two days after Boeing (BA.N) said the first delivery of the 737 MAX 7 was delayed to 2024 as it tries to secure Federal Aviation Administration certification for the narrow-body jet.

Southwest’s decision to convert some MAX 7 orders to the MAX 8 model, which is already in operation, would buffer the impact of the delivery delays.

On Thursday, Southwest Airlines issued disappointing forecasts for the current quarter and full year after missing estimates for second-quarter results, fueling concerns about the strength of domestic travel demand in the United States.

Southwest Airlines has plans to fly the MAX 7 “at some point next year”, but if not, it would take MAX 8 orders instead, CEO Robert Jordan said on a post-earnings call on Thursday.

Civil defence forces in Tunisia say wildfires which spread across five provinces for several days have now been brought under control.

More than 1,000 hectares (2,471 acres) of forest in the north western province of Jendouba have been destroyed, however, firefighters still remain on alert.

In Greece, emergency services have tried to prevent new flare-ups in the central area of Magnesia.

Searing heat from wildfires triggered powerful explosions at an ammunition depot in the town of Nea Aghialos, prompting the Greek air force to evacuate fighter jets from their base on Thursday.

Tunisia has been battling wildfires with temperatures up to 49C (120F) recorded.

Tens of millions of Americans were confronted with a one-two punch of brutally hot temperatures and oppressive humidity on Friday as an unrelenting heatwave settled over the Midwest and East Coast and was expected to persist into the weekend.

More than 175 million people in the U.S. were under excessive heat warnings and advisories until at least Saturday afternoon as midday heat index readings in many spots rose well above 100 degrees Fahrenheit (38 C), the National Weather Service (NWS) said.

Some of the nation’s biggest cities, including Chicago, New York and Philadelphia, have opened cooling centers in public libraries and community centers for those who are unable to escape the hot temperatures.

U.S. city officials and forecasters are urging people to stay out of the hot weather as it has the potential to cause heat-related illnesses, especially for those working or participating in outdoor activities, people aged 65 and older, children and those with chronic illnesses.

“Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors,” the NWS said.

In Philadelphia, where the heat index could top out at 108 degrees F (42 C), officials extended public pool and spray grounds hours on Friday and Saturday.

In New York City, where the heat index was to reach 103 degrees F (39 C), officials posted a public service announcement video on social media urging owners to keep their pets well hydrated.

The first major Manx agricultural event of the year is set to welcome thousands of visitors on Saturday and Sunday.

The Southern and District Agricultural Show runs between 10:00 and 17:00 BST on both days.

Held at Orrisdale Farm in Ballasalla, it is the first of two annual shows highlighting the farming industry.

Show President Sarah Comish said it was a “valuable” opportunity for the farming community to connect with the wider public.

About 10,000 people visited the show last year, watching stock judging and the grand parade to pick the supreme champion, as well as visiting the trade stalls, many of which showcase local produce.

The excavation of a Roman bath house in Cumbria which has already unearthed “significant finds” is to resume in October ahead of a larger dig in 2024.

More than 1,000 objects have been found at the dig at at Carlisle Cricket Club.

Two “priceless” Roman god heads and 2,000-year-old gems have been among artefacts discovered by volunteers since 2021.

Archaeologist Frank Giecco, who is leading the project, said test trenches would identify where to dig next.

“We don’t want to turn up in May 2024, open up a big area and find nothing,” he said.

Members of the dig team want to find the location of the south-west corner of the bathhouse and look for remains of buildings and shops to the south side of the adjacent road.

They will also look for evidence showing where the River Eden ran in Roman times – and whether it was navigable.

“We’ve got walls extending in every direction currently, so we can’t get a size or definitive plan of what the building looks like,” Mr Giecco said.

He added that the site had trees on one side and a road on the other, but the team was otherwise free to dig where they liked – apart from the actual cricket pitch.

“The cricket club are just brilliantly supportive, so they’ve given us free rein.”

Nick Henderson, from the Hadrian’s Wall Project, who has also been involved in the dig, said hundreds of volunteers and school children had helped.

Almost all said they would help again and many had gone on to work in the fields of archaeology or heritage, he said.

Mr Giecco, from consultancy firm Wardell Armstrong, said the group now had 1,300 members, which he had not expected.

“There’s quite a big community behind it. It’s not just the dig, it’s the group that’s taken on a life of its own,” he said.

A genetically modified purple tomato, developed by food scientists in Norwich, has been approved for sale in the US.

The country’s Food and Drug Administration (FDA) has declared it is safe to eat.

Scientists that developed the product are now seeking permission to grow it commercially in the UK.

But campaigners against genetically modified (GM) foods have described the creation as a “vanity project”.

Genetic modification involves adding genes to a plant’s DNA from a different species of plant – or even an animal. It creates new varieties which could not have been produced through cross-breeding.

Prof Cathie Martin who developed the purple tomato at the John Innes Centre in Norwich said the product had “exceptional antioxidant properties”, having crossed the genes with a snapdragon flower.

“The greater good would be if people in the UK in particular, but world over if possible, could have more nutritious food to eat”, she said.

The purple tomato is said to be rich is anthocyanins, which have been linked to a wide variety of health benefits, including increased cardiovascular health and the prevention of both cancer and dementia.

But many campaigners who are opposed to gene-edited foods are worried that GM crops will not require additional testing, and fear the creation of new allergens or toxins.