{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology address environmental and energy consumption issues?","a":"Reform consensus mechanism: Currently, the consensus mechanism in blockchain technology - Proof of Work (PoW) leads to high energy consumption. In order to reduce energy consumption, researchers have proposed new consensus mechanisms, such as Proof of Stake (PoS) and Proof of Authority (PoA). These new consensus mechanisms do not require large amounts of computing power, thereby reducing energy consumption and  carbon emissions."}]}],"pr":"c29bc143f70b6196dad3b6ac1beec4c54b97fd8eb1f604f1f342800dfd4dd87c"}