Hokkaido University・Group of Marine and Atmospheric Geochemistry・Global environment・Carbon cycle・Global warming 
Next colloquium (No.603): 15 June, Ms. Evans
This fiscal year we collaborate on our colloquium with Dr. Nishioka Lab.
(2017.03.31) Prof. Yoshikawa retired and left our group.
We renew the system of the entrance examination from 2011 to accept the entrance of students from various backgrounds. Details

Research Background

The 21st century is often called the "century of the environment." Although human beings have succeeded in civilization by using fossil fuels such as coal and petroleum, the human activities are causing rapid changes in natural environment. Therefore, much attention attention has recently been paid in our surroundings in the past, present, and future.

For example, level of carbon dioxide (CO2) in the atmosphere is increasing every year, leading to global warming certainly. The CO2 emitted to the atmosphere does not remain in the air, but exchange among the atmosphere, ocean and land. The behavior often affects terrestrial and marine ecosystems, and those organisms, in turn, produce several feedbacks to the environment. Therefore, the causal relationship between the increase in CO2 in the atmosphere and global warming is complicated, and makes future predictions uncertain.

In the group of Marine and Atmospheric Geochemistry, we are trying to determine the key factors and processes controlling the biogeochemical cycles, and to estimate their spatiotemporal variations using chemical, biological, and physical evidences.
Colloquium for Marine and Atmospheric Geochemistry
Every Wednesday 17:00~ at C-202
Introduction of literature by students



We renew the system of the entrance examination from 2011 to accept the entrance of students from various backgrounds. We will judge the matriculation from results of following three examinations.

(1) Foreign Language
(2) Specialized Subjects
Choose (a) or (b).
Essay on motivation to apply for this course, research interests, etc. (to be completed and submitted in 60 minutes).
Examination. Choose two questions from the following four subjects. There will be more than two questions for each subject: Fundamental chemistry, Fundamental biology, Fundamental earth science, Geochemistry.
If you choose this option, you must submit a written report about a topic given at the preliminary interview along with the application forms, and contact some of staff members of this course by 15 July of 2011.
(3) Oral Exam