Our veterinarians take into consideration species, breed, age, life - stage, environment, and any other relevant concerns. (yorkshirevetclinic.com)
At issue were relevant concerns about the ecological consequences of the practice and the current absence of any clear regulations for conducting these experiments at sea. (treehugger.com)
The answer to this question will perhaps be one of the most relevant concerns in the future, and is discussed in chapter 11 of the IPCC assessment report 4 (AR4) working group 1 (WG1)(the chapter also has some supplementary material). (realclimate.org)