Search
Now showing items 11-12 of 12
Breaking the 400 ppm barrier: Physical and Social implications of the recent CO2 rise
(Basque Centre for Climate Change/Klima Aldaketa Ikergai, 2013-12-20)
The concentration of carbon dioxide (CO2) in the atmosphere has achieved its highest levels in the last 800,000 years, and probably even in the last 2.1 million years, recently topping briefly the atmospheric concentration ...
Alternative trajectories for decarbonizing urban transportation
(Basque Centre for Climate Change/Klima Aldaketa Ikergai, 2013-11-21)
The transportation sector is a major contributor to global greenhouse gas emissions, accounting for one-quarter (?7 Gt CO2) of present day annual releases, 75% of which come from road transportation. *Unless there is a ...