报告题目: Coastal Oceans, CO2 and climate - Example: the North Sea

报告人：Prof. Dr. Helmuth Thomas，

时间：本周五（05.25）10：00

地点：青岛校区振声苑E113

报告人简介：

Prof. Dr. Helmuth Thomas.

Full Professor and former Canada Research Chair at Dalhousie Univ., Halifax, Canada since 10/2004

l  Major achievements:

Realisation of major carbon cycle studies in the North Sea, the Canadian Arctic Archipelago and Scotian Shelf.

CO 2 system research in the Baltic Sea and first ever assessment of its CO 2 uptake.

Understanding of the temporal CO 2 system variability in the North Atlantic and North Sea.

l  Publications:

78 in peer reviewed journals/books (3 Science,1 Nature Scientific Reports, etc)

内容摘要:

Coastal and marine systems are major reservoirs in Earth’s carbon cycle, storing many the amount of carbon in the atmosphere. As such they provide an essential service in maintaining a clement climate on Earth. Coastal systems such as mangroves and salt marshes have been reduced in area by as much as 90% through coastal development in the last century, reducing their capacity to take up atmospheric CO2. As humans' activities further perturb the Earth System through CO2 emissions and resulting temperature rise, offshore shelf and open ocean marine systems' capacity to sequester CO2 may be increasingly impacted. Whilst the physical uptake of CO2 by the ocean,driven by thermodynamics as the atmospheric concentration increases will continue in a predictable (albeit non-linear) manner, the response of key biological processes in the various mechanisms which export carbon from the atmosphere to shelf sediments and the deep ocean are difficult to predict, given the complexity of the system. The potential denudation of these carbon-removing processes has potential to significantly hamper the effort to reduce atmospheric CO2 in order to keep within the 1.5 degrees of warming agreed in the Paris convention. The considerations with respect to the Paris agreement will be preceded by a short overview about recent research activities, establishing the required scientific foundation.

邀请人：孙宝清