We have a wider political and economic system in which ancient, landed power still carries immense weight. There is nothing some landowners would like more than to set the police on those who dare to venture into their vast estates.

For some of Britain's most powerful people, hunting and shooting are primordial rights, and any challenge to them is treated as illegitimate. They assert ownership not only of the land but also of the social relationships surrounding it.

After my cancer diagnosis this year, I was offered a choice of treatments. I wanted to make an informed decision. This meant reading scientific papers. Had I not used the stolen material provided by Sci-Hub, it would have cost me thousands.

We urgently need more trees, but we appear to believe that the only means of restoring them is planting. We have a national obsession with tree planting, which is in danger of becoming as tokenistic as bamboo toothbrushes and cotton tote bags.

Even when political reporting is not reduced to personality, political photography is. An article might offer depth and complexity, but is illustrated with a photo of one of the 10 politicians whose picture must be attached to every news story.

While some people have rejected capitalism gladly and swiftly, I've done so slowly and reluctantly. Part of the reason was that I could see no clear alternative: unlike some anti-capitalists, I have never been an enthusiast for state communism.

The corporations are powerful only because we have allowed them to be. In theory, it is we, not they, who mandate the state. But we have neglected our duty of citizenship, and they have taken advantage of our neglect to seize the reins of government.

People believe Loose Change because it proposes a closed world: comprehensible, controllable, small. Despite the great evil which runs it, it is more companionable than the chaos which really governs our lives, a world without destination or purpose.

On my first night at boarding school, I felt entirely alone. I was shocked, frightened and intensely homesick, but I soon discovered that expressing these emotions, instead of bringing help and consolation, attracted a gloating, predatory fascination.

David Cameron's government criminalised squatting in empty homes. This too was previously a civil matter. Thousands of homeless people found themselves on the wrong side of the law. Some have been imprisoned for using property abandoned by its owners.

What I love about natural climate solutions is that we should be doing all these things anyway. Instead of making painful choices and deploying miserable means to a desirable end, we can defend ourselves from disaster by enhancing our world of wonders.

We should seek to love our lives and live fully, but not to extend them indefinitely. We should love our children exuberantly, but not cling to them or curtail their freedoms. We should treasure the material world without seeking to own and control it.

So, if you don’t fit in, if you feel at odds with the world, if your identity is troubled and frayed, if you feel lost and ashamed - it could be because you have retained the human values you were supposed to have discarded. You are a deviant. Be proud.

Places that have become agricultural deserts, trashed by giant corporations, could be reforested, drawing carbon dioxide from the air on a vast scale. The ecosystems of land and sea could recover, not just in pockets but across great tracts of the planet.

The notions that nature exists to serve us; that its value consists of the instrumental benefits we can extract; that this value can be measured in cash terms; and that what can't be measured does not matter, have proved lethal to the rest of life on Earth.

In thinking about male identities, I'm struck by the inadequacy of the terms we use. The notion that men should be distant, domineering and self-seeking is often described as toxic masculinity, but this serves only to alienate those who might need most help.

If we stop dragging trawls and dredges through it, the life of the seas would recover with astonishing speed. Because most marine animals are highly mobile during at least one stage of their development, the rewilding of the seas needs little help from humans.

If our grazing land was allowed to revert to natural ecosystems, and the land currently used to grow feed for livestock was used for grains, beans, fruit, nuts and vegetables for humans, this switch would allow the UK to absorb an astonishing quantity of carbon.

I have tried to keep my eco-anxiety at bay, to box it into my working life. But every month this becomes more difficult. The rising sense of panic I feel is entirely rational; we should all be feeling it. But we can't live with it through every hour of every day.

Until now I believed that the nation that has done most to sabotage a new climate change agreement was the United States. I was wrong. The real villain is Canada. Unless we can stop it, the harm done by Canada in December 2009 will outweigh a century of good works.

The justification for early boarding is based on a massive but common misconception. Because physical hardship in childhood makes you physically tough, the founders of the system believed that emotional hardship must make you emotionally tough. It does the opposite.

Wildlife film-makers I know tell me that the effort to portray what looks like an untouched ecosystem becomes harder every year. They have to choose their camera angles ever more carefully to exclude the evidence of destruction, travel further to find the Edens they depict.

If we want to prevent both climate and ecological catastrophes, the key task is to minimise the amount of land we use to feed ourselves, while changing the way the remaining land is farmed. Instead, governments almost everywhere pour public money into planetary destruction.

I might find myself standing, transfixed, by the roadside, watching a sparrowhawk hunting among the bushes, astonished that other people could ignore it. But they might just as well be wondering how I could have failed to notice the new V6 Pentastar Sahara that just drove past.

Acknowledging our love for the living world does something that a library full of papers on sustainable development and ecosystem services cannot: it engages the imagination as well as the intellect. It inspires belief; and this is essential to the lasting success of any movement.

There's nothing good about ash dieback, but there is one useful thing that could be done: wherever possible, leave the dead trees to stand. There is more life in a dead tree than in a living tree: around 2,000 animal species in the UK rely on dead or dying wood for their survival.

The people of each generation perceive the state of the ecosystems they encountered in their childhood as normal and natural. When wildlife is depleted, we might notice the loss, but we are unaware that the baseline by which we judge the decline is in fact a state of extreme depletion.

One-planet living means not only seeking to reduce our own consumption, but also mobilising against the system that promotes the great tide of junk. This means fighting corporate power, changing political outcomes and challenging the growth-based, world-consuming system we call capitalism.

Food production is ripping the living world apart. Fishing and farming are, by a long way, the greatest cause of extinction and loss of the diversity and abundance of wildlife. Farming is a major cause of climate breakdown, the biggest cause of river pollution and a hefty source of air pollution.

I believe that anyone who wants to stand in a national election should receive a course of psychotherapy. Completing the course should be a qualification for office. This wouldn't change the behaviour of psychopaths, but it might prevent some people who exercise power from imposing their own deep wounds on others.

We are often told that curtailing the freedom of business is coercive and undemocratic. But by what democratic principle should corporations and billionaires decide the fate of current and future generations? When a government releases them from regulation, it allows them to determine whether other people live or die.

If you or I had lived 500 years ago, our worldview, and the decisions we made as a result, would have been utterly different. Our minds are shaped by our social environment, in particular the belief systems projected by those in power: monarchs, aristocrats and theologians then; corporations, billionaires and the media today.

Almost all systems of economic thought are premised on the idea of continued economic growth, which would be fine and dandy if we lived on an infinite planet, but there's this small, niggling, inconvenient fact that the planet is, in fact, finite, and that, unlike economic theory, it is governed by physical and biological reality

Rainforests are not confined to the tropics: a good definition is forest wet enough to support epiphytes - plants that grow on other plants. Particularly in the west of Britain, where tiny fragments persist, you can find trees covered in rich growths of a fern called polypody, mosses and lichens, and flowering plants climbing the lower trunks.

The problem is compounded by the fact that the connection between cause and effect seems so improbable. By turning on the lights, filling the kettle, taking the children to school, driving to the shops, we are condemning other people to death. We never chose to do this. We do not see ourselves as killers. We perform these acts without passion or intent.

The schedules are crammed with shows urging us to travel further, drive faster, build bigger, buy more, yet none of them are deemed to offend the rules, which really means that they don't offend the interests of business or the pampered sensibilities of the Aga class. The media, driven by fear and advertising, are hopelessly biased towards the consumer economy and against the biosphere.

The angry men know that this golden age (of fossil fuels) has gone; but they cannot find the words for the constraints they hate. Clutching their copies of Atlas Shrugged, they flail around, accusing those who would impede them of communism, fascism, religiosity, misanthropy, but knowing at heart that these restrictions are driven by something far more repulsive to the unrestrained man: the decencies we owe to other human beings.

Is the divine presence a Republican? Or is He/She/It running an inter-galactic fossil fuel conglomerate?...whatever the explanation may be, the Paraclete appears to be as determined as any terrestrial corporate frontman to prevent a successful conclusion to the climate talks. How I know? Because every time anyone gets together to try to prevent global climate breakdown, He swaths the rich, densely habited parts of the world with snow and ice, while leaving obscurer places to cook.

Governments are deemed to succeed or fail by how well they make money go round, regardless of whether it serves any useful purpose. They regard it as a sacred duty to encourage the country’s most revolting spectacle: the annual feeding frenzy in which shoppers queue all night, then stampede into the shops, elbow, trample and sometimes fight to be the first to carry off some designer junk which will go into landfill before the sales next year. The madder the orgy, the greater the triumph of economic management.

We are often told we are materialistic. It seems to me, we are not materialistic enough. We have a disrespect for materials. We use it quickly and carelessly. If were genuinely materialistic people, we would understand where materials come from and where they go to. But, at the moment, the entire global economy seems to be built on the model of digging things up from one hole in the ground on one side of the earth, transporting them around the world, using them for a few days, and sticking them in a hole in the ground on the other side of the world.

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