Sentences with phrase «if coastal populations»

Not exact matches

«Clearly we need to identify the key threats to their survival in order to implement effective conservation strategies if we are going to protect these newly discovered coastal populations,» Dr Lukoschek says.

Impacts: Rising sea levels place the Philippines in a particularly vulnerable position, and increase the threat of storm surges that inundate vast coastal regions, threatening their populations who will be forced to migrate en masse if they are to escape the effects of food insecurity and loss of shelter and livelihood that result.

But if present trends continue, the sea level could rise to submerge low - lying islands and devastate coastal populations during this century.

But it need not be prohibitive or dangerous to life and limb if: (1) the total amount of SLR and, perhaps more importantly, the rate of SLR can be forecast with some confidence; (2) the rate of SLR is slow relative to how fast populations can strengthen coastal defenses and / or relocate; and (3) there are no insurmountable barriers to migration.

Second a high - growth scenario, where the coastal population was assumed to grow at twice the rate of the national population in the event of growth, or to decrease at half the rate if declining trends occurred, i.e. people are being relatively attracted to the coast even in the case of falling national population trends.

One is that the evidence for change in the expected direction if climate change was having an effect — that is, changes in physical (ice sheets, stream flow, coastal erosion etc.) and biological systems (timing of breeding events, shifting species ranges, population declines etc.)-- is overwhelming.

If cities do not start acting now, many of the world's vulnerable cities and populations will endure significant impacts from heat waves, heavy downpours and coastal flooding due to sea level rise.