[teknopaul]

One not very good but simple approach is to tax.

If you tax power consumption you let market forces prioritise low power solutions. US is against that for gas, but it works.

As for plàstics you can do the same, tax plastic users presuming it end ups in the ocean and give tax breaks to those that find ways to prevent it and prove they have done so. Again this uses market forces to let individual enterprises find solutions for their own use of plastics. If consumers are price conscious they will chose greener alternatives due to their own cost.

Taxing corps profits is too easy for them to avoid.

Another advantage of using taxation to regulate green issues is that you get a load of money to spend on clean up operations.

There is no need for Software, you need a majority of voters who care enough to be willing to pay for their environmental damage.