The delegation met policy makers and politicians at Capitol Hill in Washington DC where they also urged the government not to cut foreign aid spending.
Michael Gungor said: "We're here out of a passion for climate change.
"We hear the voices of the people we're talking with and to, and we hear what they are really concerned about. Climate is at the top of the list."
Gungor was also joined by other believers including singer-songwriter William Matthews, writer Katelyn Beaty, Jonathan Martin and writer Science Mike.
Science Mike said: "One of the best investments we can make is in foreign aid including on clean energy - and that actually makes sense whether or not we believe climate change is caused by human activity."
'My faith tells me that it's never too late to work for a better tomorrow, starting now.' - @mikemchargue. @micahchallenge pic.twitter.com/D08UkVxEXo
— Tearfund (@Tearfund) April 26, 2017
The summit was held after US President Donald Trump announced last month that he would undo measures taken by his predecessor Barack Obama to tackle climate change.
The trip to Capitol Hill was organised by Micah Challenge with the support of the Christian charity Tearfund, which is warning climate change is linked to more extreme weather and a greater risk of famine.
Sarah Wiggins who works in advocacy at Tearfund said: "We all agree that loving God and our neighbours includes talking to politicians about climate change because we know the poorest people, who are the least responsible for it, are bearing the highest cost.
"As followers of Jesus we care about climate change and we're so glad that Christians in the US are joining with Christians around the world as part of the #RenewOurWorld campaign to ask their government to keep promises made on environment budgets that help towards clean energy and creating green jobs."
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