The reason the Liberals are conflicted over the environment is because philosophically, the party stands for the maximisation of personal wealth – regardless of environmental, social and global cost.
Some in the party appear to have realised that this time, the very existence of the society that has allowed them to maximise wealth is under threat.
If they pursue personal wealth at any cost, our society may not survive. If they enable society to survive, then they may need to compromise personal wealth. What a dilemma for them!
I suspect we shall see the emergence of the denial principle: namely, that society is not threatened (i.e. climate change denial) therefore wealth maximisation at any cost may continue.