A melting ice shelf is not necessarily a sign of human-induced global warming.

Most climatologists believe that the effects of human-induced global warming cannot yet be distinguished from natural climatic variations.

Climatologists have no clear proof that human-induced warming has begun.

A small amount of human-induced warming might not be so bad.

It runs a high resolution model in order to try to determine the extent to which extreme weather events are attributable to human-induced global warming.

If the human species has an important place on the planet, how does this relate to the environmental crisis and human-induced global warming?

The human species has an important place on the planet and this is deeply related to the environmental crisis and human-induced global warming.

The human species will fulfil its purpose because of concerns about, and the reality of, human-induced global warming.

Whether a human-induced warming has already begun is unclear.

Scientists used a technique called 'optimal detection', which showed clear fingerprints of human-induced global warming.