This graph shows how the average surface temperature of the world’s oceans has changed since 1880. This graph uses the 1971 to 2000 average as a baseline for depicting change. Choosing a different baseline period would not change the shape of the trend. The shaded band shows the likely range of values, based on the […]
National Oceanic and Atmospheric Administration (NOAA) meteorologists began production of satellite-derived maps of Northern Hemisphere snow cover extent (SCE) in late 1966. Map data have been used in international assessments of climate variability and change, and in investigations regarding the role of snow cover in the climate system. Despite their proven climate utility, meteorological forecasting […]
Time series of (top) atmospheric CO2 and surface ocean pCO2 and (bottom) surface ocean pH at the atmospheric Mauna Loa Observatory (MLO) on the island of Hawai‘i and Station ALOHA in the subtropical North Pacific north of Hawai‘i, 1988–2008. Doney, 2010, adapted from Dore et al, 2009. Ocean acidification is documented clearly from ocean time-series […]
By Scott C. Doney Abstract: Climate change, rising atmospheric carbon dioxide, excess nutrient inputs, and pollution in its many forms are fundamentally altering the chemistry of the ocean, often on a global scale and, in some cases, at rates greatly exceeding those in the historical and recent geological record. Major observed trends include a shift […]
This figure shows changes in ocean heat content between 1955 and 2008. Ocean heat content is measured in joules, a unit of energy, and compared against the long-term average, which is set at zero. • In three different data interpretations, the long-term trend shows that ocean heat content has increased substantially since 1955. • Although […]
By Michael Perry, ReutersJune 17, 2010 SYDNEY (Reuters) – The world’s oceans are virtually choking on rising greenhouse gases, destroying marine ecosystems and breaking down the food chain — irreversible changes that have not occurred for several million years, a new study says. The changes could have dire consequences for hundreds of millions of people […]
Global atmospheric concentrations of carbon dioxide, methane, nitrous oxide, and certain manufactured greenhouse gases have all risen substantially in recent years. • Before the industrial era began around 1780, carbon dioxide concentrations measured approximately 270–290 ppm. Concentrations have risen steadily since then, reaching 387 ppm in 2009—a 38 percent increase. Almost all of this increase […]
WKRG.com News WKRG Technorati Tags: oil production,oil spill,pollution,Gulf of Mexico,North America
By Joe Romm NOAA’s National Climatic Data Center has published its monthly “State of the Climate Report.” The combined global land and ocean surface temperature was the warmest on record for May, March-May (Northern Hemisphere spring-Southern Hemisphere autumn), and the period January-May. The warming in May is greatest precisely where climate science suggested it would […]
This figure shows annual change in latitude of bird center of abundance for 305 widespread bird species in North America from 1966 to 2005. Each winter is represented by the year in which it began (for example, winter 2005–2006 is shown as 2005). The shaded band shows the likely range of values, based on the […]
