Shelter from the storm? Use and misuse of coastal vegetation bioshields for managing natural disasters

Vegetated coastal ecosystems are known to provide myriad ecosystem services to billions of people globally. However, in the aftermath of a series of recent natural disasters, including the Indian Ocean Tsunami, Hurricane Katrina and Cyclone Nargis, coastal vegetation has been singularly promoted as a protection measure against large storm surges and tsunami. In this paper, we review the use of coastal vegetation as a "bioshield" against these extreme events. Our objective is to investigate the long-term consequences of rapid plantation of bioshields on local biodiversity and human capital. We begin with an overview of the scientific literature, in particular focusing on studies published since the Indian Ocean Tsunami in 2004 and discuss the science of wave attenuation by vegetation. We then explore case studies from the Indian subcontinent and evaluate the detrimental impacts bioshield plantations can have upon native ecosystems. We draw a clear distinction between coastal restoration and the introduction of exotic species in inappropriate locations in the name of coastal protection. We conclude by placing existing bioshield policies into a larger socio-political context and outline a new direction for coastal vegetation policy and research

ECONOMIC GROWTH AND VIOLENT INTERNATIONAL CONFLICT: 1875-1999

Are states with growing economies more likely to become involved in violent interstate conflicts? This project examines whether economic growth increases international conflict using a global sample of states from 1875-1999. The theory argues that multi-year economic growth increases the resolve of state leaders to reciprocate and escalate militarized interstate conflicts, thus increasing the occurrence of fatalities or war. The results show that economic growth, but not growth of military expenditures, raises the risk of violent interstate conflicts. The results do not support the proposition that economic slowdowns result in violent interstate conflicts.War, Economic growth, Military expenditures, GDP growth, Long-term growth, Military crises, Diversionary conflict, Internal conflict, Civil conflict,