Week at a glance (September 11 – September 15, 2023) Activity in China’s national Carbon Emissions Allowance (CEA) market dropped nearly 60% from the 2023 high set in the previous week, closing the week with 5.9 million tons of total volume. Block trades accounted for all of the decrease. At the same time, however, open transactions increased substantially. Among the 5.9 million tons of weekly total volume, 0.7 million came from the 2019-2020 vintage, 2.6 million from the 2021 vintage...