Why and how vernacular architecture is relevant to our quest for green architecture?

Aerwi8VGxqoh2dZq9yTg5zouwdJN3jgTGWm5URCNTzqi GykmoVKXZ7ENq6EpHCDU6ExHnAatRqGNE77vqwdy4TKv 9hXEsiwQVXpW1EeZ9EXaUrsKfwoWhi2AwN6fukVjdNTQ 9Vz58TQZH2hhto8Jf7hT2FuxfaJhFv2qn2M3XwGEQ8K6 8uq83cJaGXSx87FN76AQNZHeCjVyVUNR76FeykouYbnr 9Dg1eoR63pAsa3zTKJ5x1cLFzvjz2bm411zW97WSsAXA 7cNLDfvyzseP1SR8TWQCGk4LK7EtYJ7kvgXbhN1Dy9Yy