Actually asking people to do this would be something of a last resort, said Ben McWilliams, a climate and energy analyst at Bruegel.<img alt="These US cities tried to cut natural gas from new homes. Republicans and the gas lobby stepped in" class="media__image" src="//viahtml.hypothes.is/proxy/im_///cdn.cnn.com/cnnnext/dam/assets/220217094013-01-cities-fossil-fuel-emissions-large-169.jpg">These US cities tried to cut natural gas from new homes. Republicans and the gas lobby stepped in"But who knows? It's an unprecedented situation. I could imagine a kind of political campaign, a real push by European leaders saying, look, if you can help us by turning down 1 degree on your thermostat, it's going to help. And you can see people uniting behind this, against Russian gas," he told CNN. "But ultimately, you'll need much more than this in response."One approach would be to replace around half the gas from other sources, McWilliams said. The United States is already shipping Iiquefied natural gas (LNG) to Europe, and EU officials are also looking to countries like Azerbaijan and Qatar. The other half will need to come from cutting demand, McWilliams said, especially as Europe prepares for next winter.Heavy industries, like steelmaking and chemical production, will need to reduce their operations. Homeowners investing in solar panels and heat pumps could help take some pressure off heating systems.Tara Connolly, a campaigner with the international NGO Global Witness who specializes in gas, says that Europe must launch an emergency program to insulate homes, replace gas boilers with heat pumps and accelerate the transition to renewable energy."It is abundantly clear that Europe's gas dependence has provided Putin with the resources to engage in his bloody venture in Ukraine, whilst hampering Europe's response,"

A few people are asking about the link to the climate crisis, particularly when it relates to the energy flows. Like, Europe is very dependent, part of Europe, is very dependent on Russian oil and gas, which is, as far as we know, still flowing until today. But could this crisis, in a sort of paradoxical way, 00:40:22 a bit like the pandemic, accelerate climate action, accelerate renewables and and so on? YNH: This is the hope. That Europe now realizes the danger and starts a green Manhattan Project that kind of accelerates what already has been happening, but accelerates it, the development of better energy sources, 00:40:49 better energy infrastructure, which would release it from its dependence on oil and gas. And it will actually undercut the dependence of the whole world on oil and gas. And this would be the best way to undermine the Putin regime and the Putin war machine, because this is what Russia has, oil and gas. 00:41:13 That's it. When was the last time you bought anything made in Russia? They have oil and gas, and we know, you know, the curse of oil. That oil is a source of riches, but it’s also very often a support for dictatorships. Because to enjoy the benefits of oil, you don't need to share it with your citizens. 00:41:38 You don't need an open society, you don't need education, you just need to drill. So we see in many places that oil and gas are actually the basis for dictatorships. If oil and gas, if the price drops, if they become irrelevant, it will not only undercut the finance, the power of the Russian military machine, it will also force Russia, force Putin or the Russians to change their regime.

Global air traffic is expected to double to 8.2 billion passengers in 2037, according to IATA, which predicts that aviation's 2019 emissions peak of around 900 million metric tons of CO2 will be exceeded within the next two to three years.At the same time, the window to cut the world's reliance on fossil fuels and avoid catastrophic changes to the climate is closing rapidly. The International Energy Agency forecasts that aviation's share of global carbon emissions will increase to 3.5% by 2030 from just over 2.5% in 2019 in the absence of efforts to further decarbonize.