Lying to her like that will probably undermine her trust in you going forward. I understand that you mean well, and sometimes we have to lie to kids about thing

Lying to her like that will probably undermine her trust in you going forward. I understand that you mean well, and sometimes we have to lie to kids about things that are too complex for them to understand, but this doesn't sound like one of these cases. It might be more effective to gently massage the truth so that it's compatible with the negativity she's digested, i.e. 'here's what's being done to manage the climate, here's the measures that are keeping the economy in good shape'.