Australia 2013 heat wave or anthropogenic climate change-related

Australia survived the two next to the hot summer, by the end of 2013 to 2014, a record heat wave swept across the country. Now, five independent studies have shown that hot summer and anthropogenic climate change.

Australia 2013 heat wave or anthropogenic climate change-related

Source: Australian Government

Australia survived the two next to the hot summer, by the end of 2013 to 2014, a record heat wave swept across the country. Now, five independent studies have shown that hot summer and anthropogenic climate change.

These papers are a larger report – part of the “interpretation of 2013 from the perspective of extreme weather events”, the report published in the “Bulletin of the American Meteorological Society” (BAMS). The report includes 22 independent studies for 16 different extreme weather events last year. Although researchers have concluded that human behavior increases the likelihood and severity of heat waves in Australia, but they also report that it is difficult to see a direct link between climate change and other extreme events, including the last two years of drought in the United States and California Colorado heavy rainfall.

Thomas Karl, director of North Carolina, the National Climatic Data Center (NCDC) mentioned at the press conference, the report stressed the “Attribution” the value and limitations. As a young discipline, attribution studies and strive to strengthen the factors that contributed to the understanding of extreme events. Karl said it was very difficult, because extreme events “very complicated” and has a variety of factors, such as rainfall, temperature, soil moisture, snowpack effectiveness and human consumption, such as water and soil.

“This is a scientist in the past few years to assume new tasks.” He said, “is still in its early stages and we also know that the variables studied in terms of their ability to have a significant difference.” For example, the impact of climate change on temperature change easier to track than the impact on precipitation.

Co-editor of the report, NCDC’s Thomas Peterson noted that one of the advantages of this report is that a number of research teams focusing the same event. For example, five research team investigated the Australian heat waves, and found a strong climate links. “5 papers combined together, is a very strong signal.” He said.

However, studies in California drought three research groups failed to come to a clear picture of long-term climate change drives the event. A study found that the direct impact of climate change in the region’s “potential height” – consistent with the level of atmospheric pressure, but did not find these pressures and lead to real changes in temperature and precipitation droughts have direct contact.

Article By :