I think the most effective Climate Policy I've noticed in my country is the transition to clean energy essentially solar energy. This has been successful thanks to abundant tropical sunshine my country enjoys. Also, the fact that using generators often cause significant noise and discomfort to families, most families use solar energy to light up their homes. Electricity is equally epileptic leading to more use of solar energy.
One policy that struggles to attain it's objectives is the Conference of partner resolution on Climate Justice where some form of funding has to come down from Industrialized countries to the global south, but most partners never hold to this commitment.
I think International frameworks like the Paris Agreement are not sufficient to fight climate change. This is due to lack of implementation mechanism, nothing happens to the countries if they fail to uphold their commitment.
Sociopolitical and economic factors greatly influence the success or failure of climate change, poorer countries rely on burning fossil fuel to grow their economy increasing the level of greenhouse gases in the atmosphere. Richer societies like western countries can drive success because they have viable economies and capital and political will to implement climate policies that can bring positive changes.
Other countries in the global south can learn local adaptation strategies from Bangladesh.
To bridge the policy-action gap, there's need for a force to ensure Climate agreements are implemented by countries.