Laudato Si (2015), also known as Caring for our Common Home, is an encyclical letter that explores the relationship between God, people, and the Earth and discusses our responsibility to care for the natural environment and others. It’s a call for an ecological conversion of the heart.

Laudate Deum (2023) is an apostolic exhortation "to all people of goodwill on the climate crisis". 

The Australian Council of the Laity of the Chevalier Family make the following concrete promises: 

• Continue to raise awareness of the 'Doing Our Part to Care for the Earth' Declaration with the Australian Laity of the Chevalier Family members.
• Create and distribute Australian Laity of the Chevalier Family calendars with a Laudato Si and indigenous focus.
• Encourage people to act for Laudato Si in their own lives (e.g., by using an email signature endorsing Laudato Si, using social media and the website to promote possible actions).
• Sustainably organise events.
• Reduce reliance on paper for meetings, gatherings, and events.
• Avoid the use of single-use objects, such as plastic plates and cutlery.
• Ensure recycling of any recyclable materials.
• Use electronic means of communication rather than paper.
• Pay carbon offsets for flights involved in Australian Council operations.
• Wear warm clothes in cold rooms instead of relying on heating.
• Encourage Australian Laity of the Chevalier Family members to purchase ‘green’ energy.

While the Australian Council acknowledges that these actions alone will not combat climate change, they are a means to start a changing mindset. 

The Australian delegates to the Fourth International Assembly of the Laity of the Chevalier Family in Cebu, Philippines made the following Laudato Si commitments on behalf of Australia:

The Australian Laity of the Chevalier Family members are invited to read and sign the 'Doing Our Part to Care for the Earth' Declaration.