Methane
topic on 6 shows · 33 statements across 17 episodes
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33 statements about Methane, every show
Canary says subterranean sensors show biomass decomposition emissions far below modeled levels
“We're monitoring for methane and CO₂ The data that's been coming back over the last year is fantastic. We're way below what we modeled. Definitely way below what is allowed. So, like, we are not seeing that decomposition.”
Filippenko: Methane and oxygen have not been found on any exoplanet
“We've not seen methane and oxygen in any other planetary atmosphere yet”
Friedberg: The US is now the world's largest exporter of methane
“The US is now the largest exporter of methane.”
Kann: Nitrous Oxide Is the Third-Largest Global Greenhouse Gas Source
“Nitrous oxide emissions, which is a powerful greenhouse gas, third, third largest source of greenhouse gas emissions in the world behind the CO two and methane.”
Kann: Methane removal avoids sequestration because it can be oxidized
“With methane, there is one key difference, which is that you can oxidize it. You can turn it into CO₂ rather than just capturing the gas and finding a place to sequester it, which is a big advantage relative to what you need to do to remove CO₂ from the atmosp…”
Dreyfus: Natural sources drive 35% of methane emissions with no mitigation tech
“Human sources of methane, there are some that we have mitigation alternatives for, and when we talk about hard-to-abate sectors for carbon dioxide, there are also hard-to-abate sectors for anthropogenic methane sources that we don't have good mitigation option…”
Dreyfus: Atmospheric methane is 200 times less concentrated than CO2
“It's about, there's about 200 times less methane by volume than CO₂, and one of the major controls On the efficacy of removal is concentration, so that difference in concentration, for one, is just going to make it that much harder to do the atmospheric methan…”
Dreyfus: Atmospheric methane naturally converts to CO2, which is far less potent
“Almost all of that methane Business as usual would convert to CO₂ anyway. So as soon as you're releasing methane to the atmosphere if it's a fossil source methane, then yes, that CO₂ that is eventually converted to is additional CO₂ that would, that's being ad…”
Dreyfus: Methane is much harder to separate from air than CO2
“Unlike CO₂, which you, is sticky in the sense that, you know, it's amenable to acid-base chemistry, there are ways that you can grab a hold of a CO₂. Methane doesn't really have that same, the same properties. It is symmetric, It doesn't have acid-base chemist…”
Dreyfus: No existing technology can currently concentrate ultra-dilute atmospheric methane
“We are not currently aware of atmospheric methane concentrators that are able to enhance methane from an ultra dilute to PPM to a higher level of concentration.”
Dreyfus: Soil methane interventions risk inadvertently increasing nitrous oxide emissions
“You have to be really careful that you're not going to tip the system to increase, for example, nitrous oxide production.”
Johnson: Replacing methane power plants with hydrogen cuts emissions by 97%
“If we just said, okay, let's just assume you lose two percent methane, you lose two percent hydrogen. That means if I took that methane and I burned that in a power plant, or I took that hydrogen and I burned that in a power plant, and I'm losing the same amou…”
Brooke: Enteric methane is directly responsible for over 0.1°C of global warming
“Now, on a warming standpoint, we're talking about half a degree C of warming effect is due to methane, and about a little over .1 degree C, about a fifth of the warming from methane is, is resulting from enteric methane.”
Szamosszegi: Methane is 84 times worse for the environment than CO2
“Methane is 84 times worse for the environment than carbon dioxide.”
First-year methane warming impact is 120 times higher than CO2
“Methane, on the first year you spill it, it's a 120 times higher global warming impact than CO₂.”
Kann: Nitrous oxide has 273 times the global warming potential of CO2
“N two O, which is also known as laughing gas, Is the third largest greenhouse gas in terms of impact on radiative forcing behind CO two and methane. It is a global worrying potential of 273 times that of CO two on a hundred year basis.”
Gas stoves leak unburned methane and 21 air toxics while turned off
“They actually found there's about
200 different chemicals that are present in gas.
21 of those are air toxins like benzene, which is a known carcinogen with no safe exposure limit and so we know that gas stoves leak about one percent of the methane even while …”
Koch-Blank: Hydrogen leaks indirectly cause warming by extending methane lifetime and creating water vapor
“Basically what happens is that the hydrogen that leaks has itself a global warming potential, which has been considered, but then also it has an effect of extending the lifetime of methane in the atmosphere basically causing the methane to stick around longer,…”
Koch-Blank: Safety risks will force hydrogen infrastructure to leak less than methane
“The safety aspects of leaking hydrogen, because the properties of leaking hydrogen is much more dangerous than leaking, Methane. Partly because it's harder to detect. So, So that's one reason why systems are likely to be tighter.”
Kann: Only 2% of total climate financing targets methane
“According to the global methane pledge, if you want to measure it by dollars, only two percent of global total climate financing goes toward methane today.”
Kann: Methane traps 84x more heat than CO2 over 20 years
“First, over a 20 year period, rather than a hundred year period, methane traps 84 times more heat than CO₂.”
Kann: Methane accounts for nearly 50% of historical net warming
“And second, depending on how you define it, methane has contributed to up to around half, nearly 50% of net warming since the pre-industrial era today.”
Reinhart: Methane causes 0.5°C of warming with 12-year lifetime
“Methane, for example, is currently causing half a degree of warming. It's about 30% of current gross, ah, warming. Methane has an atmospheric lifetime of about 12 years.”
Reinhart: Cutting methane cools the atmosphere, cutting CO2 only halts warming
“So when you cut CO₂, you stop warming it, stop warming the atmosphere even more than it already is. When you cut methane, you eventually, over about a decadal time span, start actually bringing that warming down. It's a fundamentally different dynamic.”
Reinhart: GWP 100 metric forces an implicit near-term vs long-term trade-off
“Whenever we compare things on a GWP 100 basis between methane and CO₂, what we are fundamentally doing is actually making a trade-off, one that we're not always conscious of, between near-term warming and long-term warming.”
Reinhart: Climate models demand 70% to 80% methane cuts by 2050
“And so the climate models are fundamentally depending on us Dramatically cutting methane by, you know, every model's different, but 70, 80% by 20 50, or by 2100.”
Reinhart: Oil and gas offers the most ready methane reductions
“The most ready reductions in methane do come from oil and gas. We have ready solutions there, and that is a place where we can start to bend the curve of methane”
Reinhart: Hydroxyl radicals oxidize 90% of atmospheric methane
“90% of methane ends up being what's called oxidized by something called the hydroxyl radical in the atmosphere.”
Hamilton: Cutting Methane Increases Gas Producers' Profits by Preserving Product
“And actually reducing methane helps them make more money in the end, because they're, they'll have more usable gas.”
Araque: Deep geothermal drilling avoids methane by drilling past fossil layers
“Yes, because we're not drilling into methane. We're drilling way, way below that, right? So we're just drilling into hot, dry rock. You know, we're talking about kilometers beyond where oil and gas normally is found. So, so you're really not tapping into those…”
Dell: US Upstream Methane Leakage Doubles Climate Impact of Fossil Inputs
“In the U.S., that's like two and a half percent average leakage rates. That can, over a 20 or 30 year lifetime, that can double the climate impact of your fossil fuel inputs, which is, so if we don't talk about the upstream leakage and we don't account for tha…”
Dell: Plastic Prevents Organic Waste Decomposition in Landfills, Causing Methane Emissions
“What we actually do is we mix the plastic in with organic waste and put that in the landfill, and because there's all this plastic mixed in with the organic waste doesn't have any access to oxygen, and so it decomposes anaerobically and emits all of its carbon…”
Lubershain: Aggressive Upstream Methane Abatement Is a Low-Cost, No-Regrets Necessity
“So the absolute first thing you have to do, which is basically a no regrets option because it's actually ends up being relatively low cost is. Become a methane emissions hawk and go after those upstream emissions as aggressively as humanly possible.”