On Monday, Iranian President Masoud Pezeshkian said the government was forced to burn mazut, a highly polluting fuel, to prevent interruptions to household gas supplies this year.
"We were not supposed to burn mazut at all, and we announced this. But then we got stuck. If we hadn't used it, we would have had to cut off gas supplies to households, because our consumption is many times higher than in other countries. We were forced to," Pezeshkian said in a speech broadcast on state TV.
"In order to stop these problems from happening next year, we've started to create plans," he added, without providing further details.
Iran, one of the largest oil producers in the world, has faced a severe gasoline shortage since last summer. That shortage has prompted refineries to bulk out the fuel's volume with other substances, like mazut.
In November 2024, the government issued a decree ordering an increase in household gas tariffs and authorizing provinces to use mazut in all power plants and industries.
Despite repeated promises since to phase out the use of the highly polluting fuel oil in power plants, several reports suggest the practice has not stopped.
Tehran has also implemented rolling power cuts for residential and commercial areas this winter due to a severe shortage of natural gas, the primary fuel source for the country's power plants. The government initially presented the rolling blackouts as a necessary measure to avoid using mazut or diesel.
According to a 2023 report by Radio Farda, official Oil Ministry reports showed that the country intensified its use of mazut in December 2022 to 38.5 million liters per day, a 22 percent increase, and 42 million liters per day in January 2023.
Mazut, the non-standard gasoline contains harmful additives and has significantly contributed to the air pollution crisis in the country.
In 2023, UN special rapporteur on human rights and the environment David Boyd called on Iran to halt the practice, declaring it a human rights violation.
"Iran is burning mazut, one of the dirtiest fuels, to generate electricity. This produces massive volumes of toxic air pollution, which poisons millions of people in Iran, violating their human rights, including the right to a healthy environment. Iran must stop burning mazut!," the post on X read.
The use of the low-grade fuel mazut by power plants in Iran has been linked to severe harm to public health and even fatalities, with Iranians frequently expressing frustration over the worsening air quality and pollution in many cities.
"Do you have a camera on that?" the Leighee daughters asked with laughter, pointing to their shirts donning an image of a young Donald Trump with the word "Daddy" printed below.
The Leighees, who radiate the image of an all-American family, harbor views on Iran and foreign policy that underscore Trump's appeal to disentangle from international conflicts and put "America First".
"I think sanctions and deterrence are imperative," said Mattley Leighee on combating Iran.
The prevailing sentiment among many of the Donald Trump supporters who waited for hours in the cold and rain to attend his victory rally ahead of the president-elect's inauguration is not to engage in war with Iran.
Iran International spoke to several people to get a sense of how they feel about Iran and about Trump's foreign policy.
The Leighees criticized the Biden administration for releasing frozen assets to Iran in a prisoner swap in September 2023 and said they're more concerned with US domestic issues.
"Foreign policy these past four years made us weak," said Mattley Leighee.
Wearing a beige fur vest and a parrot named Murphy sitting atop his left shoulder, Ken Houghton, a Trump supporter said he loves Iran and its people.
"Before there was Rome, there was Persia," said Houghton.
"We cannot go to war. We must be friends," said Houghton on the possibility of going to war with Iran to prevent it from becoming a nuclear power.
"Sanctions and having a strong policy to adversaries is okay, but we cannot go to war with Iran. I love Persian culture, their history is some of the most deeply rooted," he added.
Sue Skelly, who travelled from Southern California to attend the rally, said she hopes that Trump can help the people of Iran.
"I hope Trump can undo what Jimmy Carter did," said Sue Skelly referring to the Ayatollah Ruhollah Khomeini ousting the monarch in 1979 during the Carter administration, "I have a lot Persian neighbours and I love them."
Heather Hertig, witnessed the shooting of the president-elect in Pennsylvania in July from the first row, and said she views Iran as a threat.
"I feel Iran had a hand in that [shooting]," said Hertig, "I'm afraid of Iran."
The FBI identified the shooter as 20-year-old Thomas Matthew Crook and said he had no ties to Iran. US intelligence has revealed that the Islamic Republic has been behind other attempts on Trump's life.
Hertig supports any move Trump decides to make on Iran, but she said she has a 24-year-old and she doesn't want to see him get drafted.
While fans of Donald Trump are not keen on war, Trump has surrounded himself with Iran hawks like Senator Marco Rubio and Mike Waltz. Trump has threatened to bomb Iran into “smithereens” after reports surfaced of agents at the behest of the Islamic Republic plotted to assassinate him.
Former press secretary Sean Spicer, attending Sunday victory rally, told Iran International he would support any action to prevent the Islamic Republic from acquiring a nuclear weapon.
"The president understands we face multiple threats. Iran being one of them, " said Spicer who served in the White House in 2017, "I would support anything that prevents Iran from becoming a nuclear power.