4 ms·Do you know that earth is 4.5 billion years old and it has own cycles, right?by oldnet 3y agoDo you know that earth is 4.5 billion years old and it has own cycles, right?dekhn 3y agoYes, we know that. What's your point- that climate change today can be explained by earth's climate cycles?oldnet 3y agoYes, something like that.