Invasive cordgrass (Spartina spp.) in south‐eastern Australia induces island formation,salt marsh development,and carbon storage

Invasive vegetation species can lead to major changes in the geomorphology of coastal systems. Within temperate estuaries in the southern hemisphere, especially Australia and New Zealand, the cordgrass Spartina spp. has become established. These species are highly invasive, and their prolific growth leads to the development of supratidal environments in formerly intertidal and subtidal environments. Here, we quantified the impact of Spartina invasion on the geomorphology and sequestration capacity of carbon in the sediments of Anderson Inlet, Victoria, Australia. Spartina was first introduced to the area in the 1930s to aid in land reclamation and control coastal erosion associated with coastal development. We found that Spartina now dominates the intertidal areas of the Inlet and promotes accretion (18 mm/year) causing the formation of over 108 ha of supratidal islands over the past 100 years. These newly formed islands are calculated to potentially contain over 5.5 million tonnes of CO₂ equivalent carbon. Future management of the inlet and other Spartina‐dominated environments within Australian presents a dilemma for resource managers; on the one hand, Spartina is highly invasive and can outcompete native tidal marshes, thereby warranting its eradication, but on the other hand it is likely more resilient to rising sea levels and has the potential for carbon sequestration. Whether or not the potential advantages outweigh the significant habitat change that is anticipated, any management strategies will likely require additional research into costs and benefits of all ecosystem services provided by Spartina including in relation to nutrient cycling, shoreline stabilisation, and biodiversity as well as in response to the longevity of carbon found within the sediments.     

Commemoration in the United States: ‘The reason for fighting I never got straight’

The United States entered the First World War late, in April 1917, and so its centenary commemoration of the war will begin well after those of its former associated powers and enemies. Even in 2017, however, US commemoration will likely be muted by the past and present ramifications of the debate and confusion over the meanings and significance of the First World War to the United States that have raged since the end of the war itself.

美国参战是在1917年4月,是一战的后期了。因此它的一战纪念活动会晚于从前的那些友国和帝国。即便在2017年,过去和现在关于一战意义的争吵（战争结束以来就没停过）也会消弱纪念活动的音量。     

The ICC pre-trial chamber decision on jurisdiction over the situation in Myanmar

The transfer and deportation of ethnically Rohingya people from Myanmar into Bangladesh is a crime against humanity demanding an international response. What role, however, should the International Criminal Court (ICC) play? On 6 September 2018 an ICC Pre-Trial Chamber ruled that the Court has jurisdiction to investigate and prosecute such crimes as they are completed on the territory of a State party, Bangladesh. Myanmar is not a party to ICC Statute and has invoked the principle that treaties do not bind third parties without their consent. The case put in this commentary is that while the Pre-Trial Chamber’s approach to the law was arguable as an interpretation of the ICC Statute, it was unwise as a matter of policy. The argument is threefold. First, the Pre-Trial Chamber’s ruling is as a matter of legal method only the first-move in a process of norm-creation and persuasion. Second, it does not follow that because territorial jurisdiction in international law includes ‘objective’ jurisdiction over transboundary acts completed on a State’s territory that such jurisdiction was delegated by member States to the ICC in all cases. Finally, it is argued that international criminal tribunals do not succeed when the cooperation of necessary territorial governments (here, Myanmar) is withheld. Proceeding in this case risks becoming a quagmire of the ICC’s own creation at a time when it can little afford further risks to its legitimacy.