Tap aka Peter
@tapodhan.bsky.social
Boston MA based artist, designer, activist, Taoist/Buddhist, heart-centered elder, member of xrboston and Third Act. Co-coordinator Mass. State House Standout.
I’m working to disprove a specious argument by Massport that their plan to build 17 new private jet hangars at a local airfield will not increase pollution because we will be using “sustainable aviation fuels”
May 23, 2025 at 3:15 PM
I’m working to disprove a specious argument by Massport that their plan to build 17 new private jet hangars at a local airfield will not increase pollution because we will be using “sustainable aviation fuels”
Thank you for this Jeff. However, we may be comparing apples and oranges. My delve into available info focused on ethanol from corn as opposed to forest sources.
May 23, 2025 at 3:15 PM
Thank you for this Jeff. However, we may be comparing apples and oranges. My delve into available info focused on ethanol from corn as opposed to forest sources.
Hey Jeff, thanks for the supportive comment. I did a bit more research today and worked out the attached diagram. It refers to ethanol derived from corn as opposed to forests, but the intent is similar. I’m not a math genius so, if you feel like checking my numbers I would appreciate it enormously.
May 16, 2025 at 7:55 PM
Hey Jeff, thanks for the supportive comment. I did a bit more research today and worked out the attached diagram. It refers to ethanol derived from corn as opposed to forests, but the intent is similar. I’m not a math genius so, if you feel like checking my numbers I would appreciate it enormously.
It would be a major mistake for policymakers to enshrine these nascent SAFs in legislation now.
Doing so would cement a harmful myth: that SAFs are already clean, green, and scalable — when reality says otherwise. #ClimateJustice #StopGreenwashing #AviationEmissions #FoodSecurity #Sustainability
Doing so would cement a harmful myth: that SAFs are already clean, green, and scalable — when reality says otherwise. #ClimateJustice #StopGreenwashing #AviationEmissions #FoodSecurity #Sustainability
May 15, 2025 at 8:20 PM
It would be a major mistake for policymakers to enshrine these nascent SAFs in legislation now.
Doing so would cement a harmful myth: that SAFs are already clean, green, and scalable — when reality says otherwise. #ClimateJustice #StopGreenwashing #AviationEmissions #FoodSecurity #Sustainability
Doing so would cement a harmful myth: that SAFs are already clean, green, and scalable — when reality says otherwise. #ClimateJustice #StopGreenwashing #AviationEmissions #FoodSecurity #Sustainability
While some SAF types are technologically feasible, most remain experimental or lab-stage.
Despite the hype, these fuels are not proven, scalable, or widely available solutions today — yet policy conversations treat them as such.
Despite the hype, these fuels are not proven, scalable, or widely available solutions today — yet policy conversations treat them as such.
May 15, 2025 at 8:18 PM
While some SAF types are technologically feasible, most remain experimental or lab-stage.
Despite the hype, these fuels are not proven, scalable, or widely available solutions today — yet policy conversations treat them as such.
Despite the hype, these fuels are not proven, scalable, or widely available solutions today — yet policy conversations treat them as such.
Greenwashing Legislation:
By bundling SAFs with legitimate clean energy in legislation like S.2251/H.3576, we risk legitimizing aviation industry greenwashing.
Most SAF optimism comes from industry-led narratives pushing indefinite aviation growth under a "green" mask.
By bundling SAFs with legitimate clean energy in legislation like S.2251/H.3576, we risk legitimizing aviation industry greenwashing.
Most SAF optimism comes from industry-led narratives pushing indefinite aviation growth under a "green" mask.
May 15, 2025 at 8:17 PM
Greenwashing Legislation:
By bundling SAFs with legitimate clean energy in legislation like S.2251/H.3576, we risk legitimizing aviation industry greenwashing.
Most SAF optimism comes from industry-led narratives pushing indefinite aviation growth under a "green" mask.
By bundling SAFs with legitimate clean energy in legislation like S.2251/H.3576, we risk legitimizing aviation industry greenwashing.
Most SAF optimism comes from industry-led narratives pushing indefinite aviation growth under a "green" mask.
Social Justice Concerns:
These vast resources would largely benefit the privileged minority who fly.
Less than 20% of people worldwide have ever flown, yet SAF policies would divert land, water, and funds from meeting basic human needs to sustain luxury travel.
These vast resources would largely benefit the privileged minority who fly.
Less than 20% of people worldwide have ever flown, yet SAF policies would divert land, water, and funds from meeting basic human needs to sustain luxury travel.
May 15, 2025 at 8:17 PM
Social Justice Concerns:
These vast resources would largely benefit the privileged minority who fly.
Less than 20% of people worldwide have ever flown, yet SAF policies would divert land, water, and funds from meeting basic human needs to sustain luxury travel.
These vast resources would largely benefit the privileged minority who fly.
Less than 20% of people worldwide have ever flown, yet SAF policies would divert land, water, and funds from meeting basic human needs to sustain luxury travel.
Production Scale Impossibility:
US SAF production is currently 15.8M gallons a year. To hit the 2050 target? We'd need a mind-boggling 227,400% increase.
That means building 170–328 new large biorefineries every year, costing $15–115B annually. Not remotely feasible.
US SAF production is currently 15.8M gallons a year. To hit the 2050 target? We'd need a mind-boggling 227,400% increase.
That means building 170–328 new large biorefineries every year, costing $15–115B annually. Not remotely feasible.
May 15, 2025 at 8:16 PM
Production Scale Impossibility:
US SAF production is currently 15.8M gallons a year. To hit the 2050 target? We'd need a mind-boggling 227,400% increase.
That means building 170–328 new large biorefineries every year, costing $15–115B annually. Not remotely feasible.
US SAF production is currently 15.8M gallons a year. To hit the 2050 target? We'd need a mind-boggling 227,400% increase.
That means building 170–328 new large biorefineries every year, costing $15–115B annually. Not remotely feasible.
Environmental Damage:
Crop-based SAF demand = deforestation, lost carbon sinks, biodiversity destruction, and undermining climate goals.
This is why the EU excludes crop-based biofuels from their SAF definition. It threatens ecosystems and our food supply.
Crop-based SAF demand = deforestation, lost carbon sinks, biodiversity destruction, and undermining climate goals.
This is why the EU excludes crop-based biofuels from their SAF definition. It threatens ecosystems and our food supply.
May 15, 2025 at 8:15 PM
Environmental Damage:
Crop-based SAF demand = deforestation, lost carbon sinks, biodiversity destruction, and undermining climate goals.
This is why the EU excludes crop-based biofuels from their SAF definition. It threatens ecosystems and our food supply.
Crop-based SAF demand = deforestation, lost carbon sinks, biodiversity destruction, and undermining climate goals.
This is why the EU excludes crop-based biofuels from their SAF definition. It threatens ecosystems and our food supply.
Food Security Threats:
The most feasible SAF option — crop-based biofuels — would require converting vast amounts of farmland from food to fuel.
To meet the US goal of 35B gallons by 2050 would take all US corn land, plus 20% more. This threatens global food security and would spike food prices.
The most feasible SAF option — crop-based biofuels — would require converting vast amounts of farmland from food to fuel.
To meet the US goal of 35B gallons by 2050 would take all US corn land, plus 20% more. This threatens global food security and would spike food prices.
May 15, 2025 at 8:14 PM
Food Security Threats:
The most feasible SAF option — crop-based biofuels — would require converting vast amounts of farmland from food to fuel.
To meet the US goal of 35B gallons by 2050 would take all US corn land, plus 20% more. This threatens global food security and would spike food prices.
The most feasible SAF option — crop-based biofuels — would require converting vast amounts of farmland from food to fuel.
To meet the US goal of 35B gallons by 2050 would take all US corn land, plus 20% more. This threatens global food security and would spike food prices.