"Over Earth’s history, ocean life has recovered from numerous sudden extinction episodes by adaptation and evolution of new species, but the time scales for extinction and re-population are millions of years, not a few hundred years. Human-driven ocean acidification is affecting the ocean far faster than the Earth’s natural recovery pace can accommodate. Today’s rate of acidification is 10 times faster than anything experienced since the demise of the dinosaurs 65 million years ago."
"We are dependent on the natural world for the very air we breathe and every particle of food we eat. Many people, including me, would say we are dependent on it for our very sanity." — Sir David Attenborough
"It is not right to destroy the world God has given us. He created everything; as the Bible says, 'The God who made the world and everything in it is the Lord of heaven' (Acts 17:24). To drive to extinction something He has created is wrong, for He has a purpose in for everything...We Christians have a responsibility to take the lead in caring for the earth."
As Earth's oceans warm and become more acidic, ocean creatures including pteropods are undergoing severe stress. They are harbingers of change. It's possible by 2050 that they might not be able to make a shell any more and if we lose these organisms the impact on the food chain will be catastrophic.