A family planning organisation in the US is offering the Speaker of the House of Representatives, Paul Ryan, $25,000 (£18,600) to undergo a vasectomy as part of their push for a more progressive and sustainable family planning model.

Speaking on 14 December, Ryan suggested that Americans needed to be having more children. "This is going to be the new economic challenge for America: people," Ryan said. "Baby boomers are retiring — I did my part, but we need to have higher birth rates in this country." Ryan is a father of three.

In a blog posted by the organisation, Having Kids said: "Ryan's version of good family planning means pumping out lots of kids and hoping for the best." The group also points out that having a smaller family is one of the most environmentally conscious decisions you can make.

They also add that even though the US might have lower birthrates, the population is "still projected to climb drastically". Along with a "successful vasectomy", the group said that Ryan would have to "publically announce that you have donated an amount of your choice to a charity of your choice for the purpose of moving at least one child living in a US household falling beneath the 2017 Federal Poverty Guidelines closer to a fair start in life, ie closer to the privileges and opportunities in life that your own children now have."

The group does offer Ryan and alternative proposal: "The best way to address the twin threats of climate change and growing inequality is to directly link our child development and family planning systems, and incentivise smaller families that cooperatively plan for and invest more in each child."

Having Kids calls it 'Fair Start family planning'.

"Having kids means thinking about the future, and better family planning policies that will produce sustainable, equitable, and democratic communities." Executive Director of Having Kids, Anne Green, said. "What children need to become parts of the economy is a lot less than what they need to be capable participants in a democratic community, and democracy comes first."

Paul Ryan, a Republican sitting in Wisconsin's 1st district since 1999, has been Speaker of the House since 2015. According to recent reports, many expect him to leave Congress after the upcoming 2018 elections.