1 Substance abuse. Abuse of drugs and alcohol can contribute to panic disorder.  Major life stress. Stressful events and major life transitions, such as the death of a loved one, can sometimes trigger panic attacks, which can potentially recur and go on to become panic disorder.
Zero emission refers to an engine, motor, process, or other energy source, that emits no waste products that pollutes the environment or disrupts the climate. Contents.
Germany has taken on a target under the Kyoto Protocol to reduce its GHG emissions by 21% compared with the base year 1990 (and in some cases, 1995) (IEA, 2007, pp. 44â45). Through 2004, Germany reduced its total GHG emissions by 17.4% (p. 45).