Three species became extinct in recent times due to human causes.

Maybe the owners of these dogs are generous donors to human causes, too.

People who didn't want to fight the Me Icons could still contribute to the human cause.

But the one per cent that is human causes all our woes.

"I guess its a universal way for me to contribute to human causes," she said.

In an immediate sense, however, this same felicity is from a human cause.

"The cause is justice and freedom - these are human causes."

Other natural sources or previously overlooked human causes must be identified.

Your death will cause great damage to the human cause.

One of the last gaps in the evidence pointing to a human cause for global warming appears to be closing.