But this has been exacerbated by human activities which have led to: 1) an increase in greenhouse gas emissions that causes heat to remain trapped within the troposphere, and 2) a decrease in ozone in the stratosphere, causing less sunlight to be absorbed by the ozone layer, resulting in a cooling of the stratosphere.
When measuring for floor tile the rule is: Length x Width + Waste = Amount Needed. Waste Factor will vary based upon tile size, layout, configuration of room, patterns, etc. Typical waste factor is about 10%. Add 15% for tile being installed diagonally or for a room with lots of jogs and corners.
Multiply the square footage by 10 percent and round up. Add that number to the total square feet of the room. For example, 10 percent of 168 is 16.8. Rounded up, the number becomes 17. Adding 17 to 168 equals 185. This is the total number of square feet of tile you need. The extra 10 percent takes into account the staggered joints and end pieces of the floor tile.