The Legislature further finds and declares (a) that the disposal of liquid and solid waste poses serious environmental and economic problems for local governments in California, (b) that resource recovery technology presently exists which can convert municipal waste to energy while also recovering substantial quantities of raw materials, (c) that the construction of resource recovery projects can help alleviate the environmental and economic problems associated with municipal waste disposal, while at the same time producing additional supplies of energy and raw materials, and (d) that such projects should therefore be encouraged as a matter of state policy.