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.
Scoring ceramic tile with a glass cutter to cut the tile to size. To cut ceramic tile by hand without a tile cutter: 1  Mark the top of the tile where you want to cut it. 2  Place a square on the tile slightly away from the mark. 3  Use a glass cutter to score the tile on the cut line.4  Place the tile on solid surface with a wire clothes hanger under the tile aligned with the score mark. Place a square on the tile slightly away from the mark. 2  Use a glass cutter to score the tile on the cut line. 3  Place the tile on solid surface with a wire clothes hanger under the tile aligned with the score mark. 4  Press down on either side of the tile to break the tile along the score line.