Retired Brumbies and Wallabies star David Pocock will feature heavily in the Emergency on Planet Sport podcast, to be released on Friday.
Pocock will feature in the first episode alongside retired Czech tennis star Lucy Safarova, to discuss the extreme heat which blanketed the 2014 Australian Open.
Southampton's English Premier League midfielder Oriol Romeu will also feature on the series, as will Scottish rower Melissa Wilson and Great Britain triathlon coach Ben Bright.
Pocock said humanity faced a crucial challenge in controlling climate change.
"The reality is we have all the tools we need, we just need to be willing to make changes and demand that our leaders do that," Pocock said.
"In ten years' time, we really need to have got our emissions beneath 50 per cent and de-carbonised most of the world's economies. It's a huge challenge but that's one thing that human's are great at facing.
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"Our futures are at stake and if we don't up our ambition and start to deal with this as the emergency the scientists are telling us it is, then we're cooked. I think there's some sort of moral obligation for everyone to be playing their role.
"Athletes speaking out about issues really does lead to important conversations among young people and who knows where that can lead."