In countries like South Africa where food takes up as much as one-fifth of household spending, reducing waste from 'farm to table' is much more than a moral obligation - it is an economical way to maximize resources.
Diving tourism can help conserve marine wildlife and coastal ecosystems. To live up to its potential to conserve nature as well as to sustain popularity diving management including environmental education is key.
Little is known about whether regional shark management plans are robust enough to sustainably manage shark stocks. However, implementing national action plans that adhere to international guidelines and that build on experiences from other fisheries can help save endangered shark species from extinction.
Scientists examine how zoning and land use policy can protect environmentally sensitive areas at the fringe of the cities from damage by shantytowns. Political and social factors can often cause these policies to fail.