Peter Langdon Ward by the Montreal Protocol on Substances that Deplete the Ozone Layer led to the Global Warming Hiatus from 1998 to 2013, during which no statistically significant warming occurred. Warming began again in August 2014 when Bárðarbunga volcano in Central Iceland erupted 85 square kilometers of basaltic lava in six months—the largest effusive volcanic eruption since 1783. As with most effusive volcanic eruptions, this one did not form cooling aerosols in the stratosphere. All of this research is explained in detail at WhyClimateChanges.com, is summarized in a book aimed primarily at non-scientists, What Really Causes Global Warming? Greenhouse Gases or Ozone
Tourism in Antarctica tourists that come to visit Antarctica. The Environmental Protocol to the Antarctic Treaty does not specifically address tourism, but its provisions go some way to minimising the adverse impacts of tourists because, once ratified, the protocol is legally binding over all visitors to the Antarctic, whether on government or private trips. In 1994 the Treaty countries made further recommendations on tourism and non-government activities. This "Guidance for Visitors to the Antarctic" is intended to help visitors become aware of their responsibilities under the treaty and protocol. The document concerns the protection of Antarctic wildlife and protected areas, the respecting of