More than 90 percent of Paradise housing stock was destroyed by the Camp Fire in Butte County, creating a housing emergency that is far from resolved. FEMA said last week that as many as 2,000 trailers could soon be available to provide temporary housing, but the agency acknowledged that trailers alone won’t solve the problem. More than 17,000 people displaced by the fire have applied for housing aid, which could include cash for apartments or hotels. Meanwhile, weary evacuees are being asked to move from one temporary shelter to another, as relief organizations consolidate them into bigger sites.