Even with the best intentions, when humans intervene in the workings of nature, the combined effects of ignorance and arrogance can lead to great harm, and this second episode of Global Warning offers five sobering examples.
Rhinos are in danger of being wiped out because humans prize their horns. Digging wells so nomadic herders could settle down only denuded their land. The plants and animals introduced by humans to Hawaii are wiping out the older species.
Rivers are sources of life, but human activity on the Danube, the largest river in Europe, has damaged it beyond belief. Finally, technological “improvements” in the whaling industry brought extinction closer and closer – for both whales and the industry.