I won't get into 'climate change' discussion because I know nothing about it. However I disagree with you about spending funds from CO2 emissions - the government controls energy distribution and purposefully manipulate the prices (cheap energy, expensive transfers), which also excludes other energy producers (it's not cost-effective for non-government company to start producing energy in Poland). So I believe the money should be spent for:

1. Atom power plant
2. Small Reactor Atom plant
3. Building energy batteries by energy distributors,
4. Investing in green technologies

In that order.