Papers on International Trade and Environment
I have to disagree with the previous answer. There is quite a large literature on international trade and the effect of environmental regulations. To start off there is the whole race to the bottom literature and the environmental Kuznet's curve. A good start of trade versus the environment is given in Esty's 2001 Bridging the Trade-Environment Divide (found a.o. here). Copeland and Scott Taylor have a 2004 article on international trade, growth and the environment in the journal of economic literature.

As for trade in natural resources and related trade policies Ruta and Venables have an overview paper here. 

For a more general equilibrium model on differences in environmental regulations and how that affects trade you could start at Chichilnisky's 1993 North-South trade and the dynamics of renewable resources (here).