It may not be necessary to make large efforts to avoid global warming. First of all, it may not happen, and, secondly, it may not be harmful if it does. The warming observed to date, which may or may not be partly due to human activity, seems to have been beneficial in lengthening growing seasons in temperate and northern climates. Since serious efforts to reduce CO2 emissions or to increase CO2 sinks are likely to be extremely expensive, for the present it is best to wait.
On this point it is necessary to be blunt. The strongest advocates of reducing CO2 think we use too much energy |
Translation Please! Pemegang pasar zirconium terbesar dan produk antaranya serta produk sampingnya adalah Amerika Serikat, Australia, dan Canada. Beberapa negara Afrika dan Asia sudah mulai memasok zirconium di pasar dunia. Kebutuhan dunia terhadap pasir berat ini adalah dalam bentuk zirconium, zirconia, dan zircon. |
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