Sustainability at Sling Money

7 Apr 2025

To comply with Article 66(3) of MiCAR, Avian Labs Netherlands B.V. provides its customers with easy access to key information about the crypto-assets we support. 

Specifically, for any crypto-assets involved in our exchange services—whether exchanging crypto for crypto or crypto for funds—we maintain customer-facing articles with up-to-date information and direct links to relevant resources, including the official white papers of the supported stablecoins.

In line with Article 66(5) of MiCAR, we also ensure transparency regarding the environmental impact of the stablecoins we support. This information is highlighted below and in our Frequent Asked Question Pages, which include information on the principal adverse effects that different consensus mechanisms may have on the climate and environment. 

This aligns with regulatory technical standards that define how sustainability indicators and environmental impacts should be measured and presented.

Our goal is to make this information easily accessible and understandable, ensuring our customers stay informed about the assets they interact with. The information reflects Avian Labs’s Group of companies.

Energy Consumption  

  • Proof of Work (PoW): Blockchains like Bitcoin and, historically, Ethereum use PoW,  which requires vast amounts of computational power to validate transactions. 

  • Proof of Stake (PoS): are more energy efficient mechanisms, which are used by networks  such as Ethereum 2.0, Solana, reduce the amount of energy required by relying on validators who  stake tokens instead of solving complex mathematical problems.

  • Proof of History (PoH): is a unique innovation by Solana that creates a historical record  proving that an event has occurred at a specific moment in time. This allows for more efficient  transaction processing because the network doesn’t need to spend as much computational  power verifying timestamps.  

Energy Consumption Impact: Lower energy consumption translates to a reduced environmental  footprint, although the overall impact still depends on the scale of the network and the energy  sources used by validators.  

Carbon footprint  

  • Energy Consumption: The combo of PoH and PoS reduces the energy required to process  transactions significantly. This is why a transaction on Solana uses only 0.878 kJ of energy,  which is significantly lower than the energy usage in PoW-based blockchains like Bitcoin. 

  • Carbon Emissions: The significantly lower energy consumption of Solana leads to  reduced carbon emissions, making it a more environmentally friendly blockchain compared to  those that rely on PoW. 

  • Sustainability: Solana’s design inherently supports sustainability by minimizing the  environmental impacts associated with high energy use and carbon emissions. 

Carbon Footproint Impact: Higher CO2 emissions contribute to climate change, with potentially  severe impacts on ecosystems, weather patterns, and global health. Lower energy consumption  translates to a reduced environmental footprint. Even if some validators on Solana use non renewable energy sources, the overall impact on the environment is much less severe than in the  alternative PoW systems.  

Mining  

  • Mining Hardware: In PoW systems, the need for high-performance mining hardware  leads to significant electronic waste as this equipment becomes obsolete quickly due to the rapid  advancement of technology and the increasing difficulty of mining. 

  • Mining Operations: Mining operations, particularly large-scale mining farms, generate  significant heat, which may require additional energy for cooling systems, further increasing the  environmental footprint.

Mining Impact: This contributes to environmental pollution, including the contamination of soil  and water by hazardous materials such as heavy metals. Increased energy consumption for  cooling exacerbates the overall carbon footprint and can lead to localized environmental issues,  such as heat pollution.  

Offsetting 

  • Carbon Offsetting: Some blockchain projects, such as Solana, engage in carbon offsetting  initiatives to neutralize their carbon emissions. This involves investing in renewable energy  projects or purchasing carbon credits to compensate for the emissions generated by the network.  

  • Renewable Energy: Encouraging the use of renewable energy sources for powering  blockchain networks can significantly reduce the carbon footprint. For instance, if mining  operations or validators use solar, wind, or hydropower, the adverse impacts are mitigated. 

Offsetting Impact: Solana has worked with partners like the Energy Web Foundation to explore  and promote the use of renewable energy within the blockchain ecosystem. 

Find out more  

  1. USDP-White-Paper.pdf  

  2. MiCA USDC White Paper  

  3. Solana Climate Dashboard