Andrew Forrest from Fortescue said that in order to tackle global warming runaway, it is important for politicians not only to use catchphrases like clean hydrogen but also understand the science behind renewable energy sources.

I’m asking them for academic analysis and research. Forrest told CNBC on Thursday, “Just don’t fall” like they are in Australia and elsewhere for sound bites such as “clean hydrogen”.Squawk Box Asia“

“That’s just like clean coal, or cancer-free tobacco,” he explained, noting that decision-makers should ask about emissions from accidental or unintended leaks and the impacts of methane on the atmosphere over the next twenty years.

Hydrogen can be described as a “versatile energy carrierThe International Energy Agency says that it is able to help address various energy issues. This technology has many applications, which can help to lower carbon emissions in areas such as long-haul transport and chemical transportation.

Hydrogen can be produced in a number of ways and from almost all energy resources — one way is to use electrolysis, with an electric current splitting water into oxygen and hydrogen. If electricity comes from renewable sources such as wind and solar, some call it “green”, or “clean” hydrogen.

Although hydrogen demand has increased more than threefold in the past 25 years and is still rising, almost all of its production comes from fossil fuels according to the IEA. As such, the production of hydrogen is responsible for emissions of around 830 million tons of carbon dioxide a year — equivalent to the emissions of the U.K. and Indonesia combined, according to the IEA.

Forrest explained, “If you want to end global warming at the point when it is most dangerous,” he said.

Fossil fuel sectors are also driving this trend. carbon sequestration — the process of capturing and storing atmospheric carbon dioxide as a way to tackle global warming, according to Forrest. He said that most attempts to capture and store atmospheric carbon dioxide tend to be unsuccessful.

The world’s top climate scientists are back this year delivered their starkest warning yet about the deepening climate crisis. The much-anticipated report by the U.N.’s climate panel said that limiting global warming to close to 1.5°C or even 2°C above pre-industrial levels “will be beyond reach” in the next two decades without immediate, rapid and large-scale reductions in greenhouse gas emissions.

The 1.5°C threshold is crucial because beyond this level, there could be an irreversible change in the climate system, locking in further global heating.