Supporters of the chemtrail theory are generally dismissed as crackpots, and rightly so, because it is absurd to believe that a conspiracy on the scale they describe could possibly be kept quiet. It is not much more plausible than suggesting that the Earth is flat.

I am not suggesting that petitions are a waste of time – they actually take up very little time – but don’t expect them to achieve much. There is a danger that people feel that the job is done, just because their favoured petition has reached a certain number of signatures. We will not save the planet simply by signing petitions, no matter how many we sign; they are a little more than a displacement activity.

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Some previous deliberate introductions of non-native species to Australia had gone horribly wrong: for example, cane toads from South America, introduced to help control sugar cane pests, have themselves become a plague, proliferating to the point where there are now estimated to be about 200 million of them, eating everything except the pests they were intended to control.

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Countries whose efforts are woefully inadequate, and likely to see us heading towards global warming of 4°C or more (catastrophic for all life on earth), include the USA, Saudi Arabia and Russia. It is perhaps not a coincidence that these three countries happen to be the three biggest oil producers in the world. One might be forgiven for suspecting that their heart is not really in tackling climate change at all. In the case of the USA this was made abundantly clear under the Trump administration.

Glyphosate is a general-purpose herbicide, killing any plant it touches. It is systemic, which means that it spreads through the tissues of the plant to kill the roots. I hate to admit this now, but I once used to use it quite a lot in my garden, as I believed the manufacturers when they claimed that it was non-toxic to wildlife and broke down very quickly in the environment. I used to be very naïve.

Similar issues affect the 211,000 km<sup>2</sup> protected by the USA’s sixty-two National Parks. These are supposed to be wilderness areas unaffected by man’s activities, yet many are affected by oil and gas drilling, or by invasive species, while quite a few allow hunting, and climate change is affecting them all. The Everglades National Park, for example, is being damaged by over-extraction of water to irrigate crops, by fertiliser and pesticide pollution, and by no fewer than 1,392 different invasive species, spanning everything from Burmese pythons to spreading spans of Australian tea trees.
It is clear that trying to set aside areas for nature has not been adequate as a strategy to prevent biodiversity loss – though nature reserves undoubtedly have value – and that we need to do much more. We do not have to continue headlong towards environmental Armageddon, but to halt this process requires us to recognize that our current strategies are not working, and that we cannot carry on as we have in the past. It is not too late to save our planet, but to do so we need to learn to live alongside nature, to value and cherish it, to respect all life as equal to our own, especially the small creatures.