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4 results for "environment"

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  1. Benefits of genetically modified foods

    Patrick Moore

    Why are scientists putting so much emphasis on genetically modified foods — is this something we really need to pursue? Genetically modified foods have great benefits for human health and our environment — so yes, I believe it is something we need to pursue.

    Story | Conversation | May 31, 2006
  2. Real or artificial Christmas trees?

    Patrick Moore

    Is it environmentally friendlier to have a real or artificial Christmas tree? I often say that one way to protect the environment is to choose renewable materials and energy wherever possible. Artificial trees are made from non-renewable plastics and petroleum-based products. Although some people claim that these trees last a lifetime, most are thrown away within nine years-and remain in landfill sites for centuries. For me the choice isn't real or artificial, but whether to buy a cut tree or one that's growing in a pot, which I can plant outside after the holidays.

    Story | Conversation | May 31, 2006
  3. The targeting of exotic species

    Patrick Moore

    There is a growing movement to target exotic species, those that have been introduced to new regions as a result of human activity, as a threat to the environment. They are often referred to as "alien species", or "invasive species" in order to give a negative impression.

    Story | Conversation | May 31, 2006
  4. Three diversities of biodiversity

    Patrick Moore

    The term "biological diversity" or "biodiversity" is now widely used to indicate the variety of living things. In a general sense, biodiversity is used as a synonym for "nature" or "the living world". In a technical sense, biodiversity is used to describe a large number of situations in the environment. One of the difficulties in understanding the concept of biological diversity is the fact that there are, so to speak, a diversity of diversities. In trying to keep it simple I have chosen only the three most important measures of diversity within living systems. These are genetic diversity, species diversity and landscape diversity.

    Story | Conversation | May 31, 2006