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LORENZAGO DI CADORE - Pope Benedict said the human race must listen to "the voice of the Earth" or risk destroying its very existence.
The Pope, speaking as he was concluding a holiday in northern Italy, also said that while there was much scientific proof to support evolution, the theory could not exclude a role by God.
"We all see that today man can destroy the foundation of his existence, his Earth," he said in a meeting with 400 priests. "We cannot simply do what we want with this Earth of ours, with what has been entrusted to us."
The Pope said: "We must respect the interior laws of creation, of this Earth, to learn these laws and obey them if we want to survive.
"This obedience to the voice of the Earth is more important for our future happiness ... than the desires of the moment. Our Earth is talking to us and we must listen to it and decipher its message if we want to survive."
Last April the Vatican sponsored a scientific conference on climate change to underscore the role that religious leaders around the world could play in reminding people that wilfully damaging the environment is sinful.
The Pope spoke of the current debate raging in some countries, particularly the United States and his native Germany, between creationism and evolution.
"They are presented as alternatives that exclude each other," the Pope said.
"This clash is an absurdity because on one hand there is much scientific proof in favour of evolution, which appears as a reality that we must see and which enriches our understanding of life and being as such."
But he said evolution did not answer all the questions. "Above all it does not answer the great philosophical question: 'Where does everything come from?"'
- REUTERS