caledonian forest

Alan Watson Featherstone, founder of Trees for Life, describes nearly 30 years of work restoring the ancient Caledonian Forest in the Scottish Highlands, illustrated with his photography.

Fools & Dreamers is a 30-minute documentary about Hinewai Nature Reserve in New Zealand, where botanist Hugh Wilson let gorse grow as a nurse canopy to regenerate native forest. It shows the results after 30 years and the local skepticism he faced.

A short documentary about Jadav Payeng, who since the 1970s has planted a forest larger than Central Park on India's Majuli island, turning barren land into a lush oasis.

Isaac Arthur examines the Dark Forest theory, Cixin Liu's proposed solution to the Fermi Paradox in which civilizations stay silent and may destroy any that reveal themselves. He tests the theory's underlying assumptions and arguments.

Kurzgesagt animated explainer on the Dark Forest answer to the Fermi Paradox. It argues that if advanced civilizations exist, staying silent may be the safest strategy because revealing yourself invites a first strike.

An SBS Dateline short documentary on Danish forest kindergartens, where children play freely outdoors, climb trees and use knives with little adult intervention.

A short film from Agenda Gotsch introducing syntropic agriculture and Ernst Gotsch's agroforestry methods, made for COP21. It shows degraded land regenerated into productive forest farms.

Permaculture instructor Andrew Millison visits the chinampas, the floating gardens of Xochimilco in Mexico City. He looks at this ancient Aztec agricultural system and the project restoring it.

Permaculture instructor Andrew Millison travels with the UN World Food Programme to Niger to see land recovery within the Great Green Wall, where rainwater harvesting is boosting food security and restoring the ecosystem.

A Kurzgesagt animated explainer on the climate and environmental cost of meat. It covers how beef drives deforestation and emissions, and how this compares with plant-based foods.

A one-minute clip of the New Caledonian crow Betty bending a straight wire into a hook to retrieve food from a tube. It comes from a 2002 Science study on tool-making in crows.

Tom Chi gives the opening talk of a Foresight Institute competition on clean energy and clean air, framing excess CO2 as a carbon debt to repay and discussing large-scale tree planting, including by drone.

Veritasium explains why many real-world systems follow power laws rather than normal distributions. It covers self-organized criticality, with simulations of sandpiles, magnetism and forest fires.

Tom Scott explains why Ipley Cross in England's New Forest was one of Britain's most dangerous junctions. The angled crossroads lets a car's A-pillar hide approaching traffic and cyclists because there is no relative motion in the driver's view.

A silent PLOS ONE video of New Caledonian crows solving Aesop's Fable puzzles by dropping objects to raise water and reach food. It shows example trials from experiments testing causal understanding of water displacement.

A 1969 BBC Tomorrow's World segment about Nellie, a school computer used by pupils at Forest Grammar School to solve equations and play music. Students learn programming and maintenance, and act out binary arithmetic.

Two Minute Papers covers a paper on speeding up fluid and smoke simulation with convolutional networks. It contrasts the approach with earlier regression forest methods.