Target Atmospheric CO2: Where Should Humanity Aim?
... of increased weathering as CO2 increases, become important on longer geologic time scales. Paleoclimate data permit evaluation of long-term sensitivity to specified GHG change. We assume only that, to first order, the area of ice is a function of global temperature. Plotting GHG forcing [7] from ice ...
... of increased weathering as CO2 increases, become important on longer geologic time scales. Paleoclimate data permit evaluation of long-term sensitivity to specified GHG change. We assume only that, to first order, the area of ice is a function of global temperature. Plotting GHG forcing [7] from ice ...
this paper
... It has been estimated that over the latter half of the 20th century, more than 80% of the energy gained by the Earth‟s climate system as a result of anthropogenic forcing has accumulated in the subsurface ocean [1]. If we are to achieve an observing system capable of monitoring the Earth‟s radiation ...
... It has been estimated that over the latter half of the 20th century, more than 80% of the energy gained by the Earth‟s climate system as a result of anthropogenic forcing has accumulated in the subsurface ocean [1]. If we are to achieve an observing system capable of monitoring the Earth‟s radiation ...
Special events
... grains, pebbles and even stones that were carried out onto the shelf margin and beyond by iceberg. These lithic fractions have an unusual composition, with a high concentrations of light colored detrital carbonate within the ice rafted detritus. High IRD counts and abundances of detrital carbonate w ...
... grains, pebbles and even stones that were carried out onto the shelf margin and beyond by iceberg. These lithic fractions have an unusual composition, with a high concentrations of light colored detrital carbonate within the ice rafted detritus. High IRD counts and abundances of detrital carbonate w ...
Balance as bias: global warming and the US prestige press
... press—by which we mean the New York Times, the Washington Post, the Los Angeles Times, and the Wall Street Journal—has contributed in significant ways to failed discursive translations regarding global warming. These press outlets have done this by adhering to the journalistic norm of balanced report ...
... press—by which we mean the New York Times, the Washington Post, the Los Angeles Times, and the Wall Street Journal—has contributed in significant ways to failed discursive translations regarding global warming. These press outlets have done this by adhering to the journalistic norm of balanced report ...
Arctic marine mammal population status, sea ice habitat loss, and
... Abstract: Arctic marine mammals (AMMs) are icons of climate change, largely because of their close association with sea ice. However, neither a circumpolar assessment of AMM status nor a standardized metric of sea ice habitat change is available. We summarized available data on abundance and trend f ...
... Abstract: Arctic marine mammals (AMMs) are icons of climate change, largely because of their close association with sea ice. However, neither a circumpolar assessment of AMM status nor a standardized metric of sea ice habitat change is available. We summarized available data on abundance and trend f ...
Annual Report for Research Centers and Institutes
... DICE proposal – CEOS led the development of the CFI proposal for the Disaster Information Centre (DICE). The proposal was very well received by provincial and federal partners, both in the private and public sectors. We organized a team of some 30 researchers from 10 different agencies. The Canadian ...
... DICE proposal – CEOS led the development of the CFI proposal for the Disaster Information Centre (DICE). The proposal was very well received by provincial and federal partners, both in the private and public sectors. We organized a team of some 30 researchers from 10 different agencies. The Canadian ...
Future sea level
The rate of global mean sea-level rise (~3 mm/yr; SLR) has accelerated compared to the mean of the 20th century (~2 mm/yr), but the rate of rise is locally variable. Factors contributing to SLR include decreased global ice volume and warming of the ocean. On Greenland, the deficiency between annual ice gained and lost tripled between 1996 and 2007. On Antarctica the deficiency increased by 75%. Mountain glaciers are retreating and the cumulative mean thickness change has accelerated from about −1.8 to −4 m in 1965 to 1970 to about −12 to −14 m in the first decade of the 21st century. From 1961 to 2003, ocean temperatures to a depth of 700 m increased and portions of the deeper ocean are warming.The Intergovernmental Panel on Climate Change (2007) projected sea level would reach 0.18 to 0.59 m above present by the end of the 21st century but lacked an estimate of ice flow dynamics calving. Calving was added by Pfeffer et al. (2008) indicating 0.8 to 2 m of SLR by 2100 (favouring the low end of this range). Rahmstorf (2007) estimated SLR will reach 0.5 to 1.4 m by the end of the century. Pielke (2008) points out that observed SLR has exceeded the best case projections thus far. These approximations and others indicate that global mean SLR may reach 1 m by the end of this century. However, sea level is highly variable and planners considering local impacts must take this variability into account.