Grassroots lobbying From Wikipedia, the free encyclopedia. Grassroots lobbying (also indirect lobbying) is a form of lobbying that focuses on raising awareness of a particular cause at the local level, with the intention of reaching thelegislature and making a difference in the decision-making process.
A heatwave is caused by a system of higher atmospheric pressure. In a high pressure system, air from upper levels of the atmosphere descends and rotates outward. As it comes down, it becomes compressed, which increases its temperature and dries it out.
  From Wikipedia... A heat wave is a prolonged period of excessively hot weather, which may be accompanied by high humidity. There is no universal definition of a heat w â¦ ave;[1] the term is relative to the usual weather in the area.