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Extreme weather earlier this month put questions of climate change back on the agenda - particularly highlighting the weather impact of warming seas, and the effect of human behaviour on the health of our oceans.

Hurricane Irma even caused the plane carrying Pope Francis on a visit to Colombia to change its course. On his rather smoother journey home, the Pope warned that humanity will "go down" if we do not address climate change. Scientists clearly tell us the way forward, he said, and we all, politicians, everyone, have a moral responsibility to act.

But there hasn't always been a unified response within faith communities: many have been slow to embrace the issue, seeing it perhaps as too political; too complex; or just of less importance than other priorities.

So, what should be our response to climate change - and how much impact can we have? Joining Sarah Rowland Jones to discuss the issues are:

Steve Hall, Chief Executive of the Society for Underwater Technology, and former Vice-Chair of the Intergovernmental Oceanographic Commission of UNESCO; Graham Gordon, head of policy at the Catholic International Development Charity, CAFOD; and Stephen Edwards, campaigner at Operation Noah, an ecumenical Christian charity responding to the threat of climate change.