I can start with the qualitative aspect.
This certainly is about intergenerational equity. We need to protect the interests and rights of future generations by investing today to avoid higher costs for future generations.
There's an example in paragraph 35. According to the Treasury Board Secretariat report on resilience, not the one on mapping, “climate change was estimated to cost in the range of $3 billion to $8 billion annually […] by 2030 and in the range of $6.2 billion to $13.5 billion annually by 2050.”
That's why it's so important to invest now not only to avoid disasters and the destruction of federal assets, such as bridges, but also to protect the interests of taxpayers now and in the future.