Stephen Lisauskas, a vice president at Waste Zero, a North Andover company that advises municipalities on ways to reduce their trash disposal costs, says cities and towns can fairly easily boost recycling and reduce trash generation. He worries that inertia on Beacon Hill and out-of-sight-out-of-mind attitudes toward trash among residents of the state are likely to discourage recycling and lead to a boost in expensive trash exports. Massachusetts and the rest of the states in the northeast already have the highest trash disposal costs in the country.