The Brazilian hosts of the biggest climate meeting of the year have implored businesses to attend in November, amid concerns some are backing away from the climate agenda into the shadow of Donald Trump.

In an interview with Sky News, Ana Toni, chief executive of the COP30 climate summit in November, admitted some companies were having “second thoughts” about the global switch to green economies because policymakers were creating uncertainty.

The US President Donald Trump has been attacking wind farms and waging tariff wars that could slow the transition to green energy.

Banks including HSBC and Barclays have ditched a net zero alliance set up just four years ago by Mark Carney, now the Canadian Prime Minister.

But even before Trump took office, tech companies were quietly dropping climate targets to prioritise energy-hungry AI, and other businesses were “greenhushing” their climate initiatives for fear of backlash.

In this environment, there are fears fewer business leaders will attend the annual talks, which are also being hosted in a city on the edge of the Amazon that hasn’t enough hotel rooms.

On Friday, the COP30 team wrote to business leaders urging them to “step forward, not back” and travel to Belem, despite “logistical challenges” and the “background of systemic uncertainty”.

Ana Toni told Sky News: “We are very concerned that the enabling conditions must be there so that the private sector can also deliver where they do best, which is bringing in technology, bringing innovation and accelerating the process of decarbonisation.”

In August the share price of Danish wind farm developer plummeted after the US halted its Rhode Island wind farm, while the British Tories and Reform parties are also attacking net zero.

But Ms Toni there is “nothing to panic [about], because we can see that the transition is inevitable,” citing major progress in China, India and Europe and Brazil.

Referring to the US’s withdrawal from the COP process, she said: “198 countries minus one is not zero. And we will put all our efforts of working with the 197 countries that want to go forward and want to protect their population.”

“Climate action is not only [still] cool, it is necessary,” Ms Toni said.

“We all need to face reality. We are going through a huge climate crisis… If you’re not part of the solution, you’re part of the problem. Companies understand that.”

US President Donald Trump has revoked Secret Service protection for former vice president and 2024 Democratic rival Kamala Harris.

A senior adviser to Ms Harris, Kirsten Allen, confirmed the decision. “The vice president is grateful to the United States Secret Service for their professionalism, dedication, and unwavering commitment to safety,” said the adviser.

Typically, vice presidents receive a six-month security detail from the Secret Service after they leave office, although it had been extended to 18 months for Ms Harris, according to officials.

Initially, then-president Joe Biden extended her security arrangements to one year, or January 2026, according to reports.

However, a Secret Service official told Sky News’ US partner, NBC, that Mr Biden subsequently signed an executive memorandum in January increasing the then vice-president’s protection period even further, to 18 months.

Former US presidents receive Secret Service protection for life.

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Ms Harris, who lost the 2024 presidential election to Mr Trump, is due to start a book tour for her memoir, 107 Days, shortly.

She was the Democratic nominee for 107 days after Mr Biden exited the race in the weeks following a challenging debate against Mr Trump.

Mr Trump has also ended federal security protection for others, including former national security adviser John Bolton. Last week, FBI agents raided Mr Bolton’s Maryland home.

In March, the president ended protection for Mr Biden’s children, Hunter and Ashley Biden.

Ms Harris has not ruled out a possible presidential run in 2028. She announced in July that she would not run for governor of California in 2026.

Thailand’s prime minister has been sacked after a leaked phone call with a senior Cambodian politician caused outrage.

Paetongtarn Shinawatra, who was Thailand’s youngest PM, has been dismissed from office by the country’s Constitutional Court after only a year in power.

The court found Ms Shinawatra, 39, violated ethics in a leaked June telephone call, during which she appeared to kowtow to Cambodia’s former leader Hun Sen as the bordering countries were on the verge of an armed conflict.

She also criticised a Thai army commander – a taboo move in a country where the military is extremely influential.

Fighting erupted weeks later and lasted five days. At least 35 people were killed and more than 260,000 were displaced.

Ms Shinawatra, who was new to politics when she took office in August last year, apologised over the call and said she was trying to avert a war. She was suspended in July.

She is now the fifth Thai PM from, or backed by, the billionaire Shinawatra family to be removed by the military or the judiciary in 17 years, amid a battle for power between the country’s warring elites.

The ruling thrusts Thailand into more political uncertainty at a time of public unease over stalled reforms and a stuttering economy.

Speaking after the court’s decision, the exiting PM said “all sides” in Thai politics now “have to work together to build political stability and to ensure that there won’t be another turning point again”.

The focus will now shift to who will replace Ms Shinawatra.

Her influential, billionaire father, Thaksin Shinawatra, who also once served as Thailand’s PM, is expected to be at the heart of a flurry of bargaining to keep the ruling Pheu Thai party in power.

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The leader of the main opposition People’s Party has called for the next prime minister to dissolve parliament once they are installed.

The deputy PM, Phumtham Wechayachai, and the current cabinet will act as government caretakers until a new leader is elected by parliament. There is no time limit on when that must take place.