Addressing the rise of people who no longer practise religion in the United States, prominent creationist Ken Ham said that only the Gospel can save what he perceives to be a "dying culture."

Ham is the Chief Executive Officer and president of Answers in Genesis (AiG), a non-profit organisation devoted to propagating Young Earth Creationism or the belief that the Earth was created by God approximately 5,000 to 10,000 years ago.

Ham also heads the Creation Museum in Kentucky.

According to Religion News, the 2014 General Social Survey released earlier this month revealed that 21 per cent of Americans say they have no religion. The Survey also revealed that, from 2012 to 2014, the number of people in America who are no longer active in religion have increased by around 7.5 million.

Ham published a blog on the AiG website addressing the results of the 2014 General Social Survey, particularly the rise of people who confess to have no religion.

The creationist expressed concern that the number of people who reject religion in the United States continues to rise, even if the country has the largest number of Christian bookstores, schools and universities in the world. The AiG CEO then claimed that these "nones" actually have a religion, and that is secularity.

"They have a man-made religion of secularity. They have developed a worldview through which they view and interpret the world," he said.

Quoting Matthew 12:30, Ham said that people will always have a religion. However, he added in his blog, there are only two religions, and they are either "for Christ or against Christ."

"There is no neutrality!" Ham stressed.

Ham then went on to urge Christians to reach out to the "nones" and preach the gospel in order to help save what he called a "dying culture."

"We need to be bold in sharing the Gospel with them and be prepared with solid, biblical answers to the questions that they have about the Christian faith," the creationist urged.