TY - JOUR
T1 - Greenland climate change
T2 - from the past to the future
AU - Masson-Delmotte, Valérie
AU - Swingedouw, Didier
AU - Landais, Amaëlle
AU - Seidenkrantz, Marit-Solveig
AU - Gauthier, Emilie
AU - Bichet, Vincent
AU - Massa, Charly
AU - Perren, Bianca
AU - Jornelli, Vincent
AU - Adalgeirsdottir, Gudfinna
AU - Christensen, Jens Hesselbjerg
AU - Arneborg, Jette
AU - Bhatt, Uma
AU - Walker, Donald A.
AU - Elberling, Bo
AU - Gillet-Chaulet, Fabien
AU - Ritz, Catherine
AU - Gallée, Hubert
AU - Broeke, Michiel van den
AU - Fettweis, Xavier
AU - Vernal, Anne de
AU - Vinther, Bo Møllesøe
N1 - CENPERM[2012]
PY - 2012
Y1 - 2012
N2 - Climate archives available from deep sea and marine shelf sediments, glaciers, lakes, and ice cores in and around Greenland allow us to place the current trends in regional climate, ice sheet dynamics, and land surface changes in a broader perspective. We show that, during the last decade (2000s), atmospheric and sea surface temperatures are reaching levels last encountered millennia ago, when northern high latitude summer insolation was higher due to a different orbital configuration. Records from lake sediments in southern Greenland document major environmental and climatic conditions during the last 10,000 years, highlighting the role of soil dynamics in past vegetation changes, and stressing the growing anthropogenic impacts on soil erosion during the recent decades. Furthermore, past and present changes in atmospheric and oceanic heat advection appear to strongly influence both regional climate and ice sheet dynamics. Projections from climate models are investigated to quantify the magnitude and rates of future changes in Greenland temperature, which may be faster than past abrupt events occurring under interglacial conditions. Within one century, in response to increasing greenhouse gas emissions, Greenland may reach temperatures last time encountered during the last interglacial period, approximately 125,000 years ago. We review and discuss whether analogies between the last interglacial and future changes are reasonable, because of the different seasonal impacts of orbital and greenhouse gas forcings. Over several decades to centuries, future Greenland melt may act as a negative feedback, limiting regional warming albeit with global sea level and climatic impacts.
AB - Climate archives available from deep sea and marine shelf sediments, glaciers, lakes, and ice cores in and around Greenland allow us to place the current trends in regional climate, ice sheet dynamics, and land surface changes in a broader perspective. We show that, during the last decade (2000s), atmospheric and sea surface temperatures are reaching levels last encountered millennia ago, when northern high latitude summer insolation was higher due to a different orbital configuration. Records from lake sediments in southern Greenland document major environmental and climatic conditions during the last 10,000 years, highlighting the role of soil dynamics in past vegetation changes, and stressing the growing anthropogenic impacts on soil erosion during the recent decades. Furthermore, past and present changes in atmospheric and oceanic heat advection appear to strongly influence both regional climate and ice sheet dynamics. Projections from climate models are investigated to quantify the magnitude and rates of future changes in Greenland temperature, which may be faster than past abrupt events occurring under interglacial conditions. Within one century, in response to increasing greenhouse gas emissions, Greenland may reach temperatures last time encountered during the last interglacial period, approximately 125,000 years ago. We review and discuss whether analogies between the last interglacial and future changes are reasonable, because of the different seasonal impacts of orbital and greenhouse gas forcings. Over several decades to centuries, future Greenland melt may act as a negative feedback, limiting regional warming albeit with global sea level and climatic impacts.
U2 - 10.1002/wcc.186
DO - 10.1002/wcc.186
M3 - Journal article
SN - 1757-7780
VL - 3
SP - 427
EP - 449
JO - Wiley Interdisciplinary Reviews: Climate Change
JF - Wiley Interdisciplinary Reviews: Climate Change
IS - 5
ER -