Question 1

Why are wildfires getting worse?

Accepted Answer

Because three separate trends have compounded: **more flammable landscapes, more ignitions, and hotter drier conditions** — and the first of those is frequently the most important and the least discussed.

**Fuel accumulation.** Many fire-prone ecosystems evolved with frequent low-intensity fire that consumed undergrowth. A century of aggressive fire suppression removed those small fires, allowing dense fuel to build. **Suppressing small fires reliably produces bigger ones later** — the fire deficit, and one of the clearest cases of a well-intentioned policy creating the problem it addressed. Indigenous cultural burning practices, suppressed alongside it, are now being reintroduced in several regions.

**Climate conditions.** Higher temperatures increase evaporation, drying vegetation. **Vapour pressure deficit** — how thirsty the air is — has risen measurably and is strongly associated with fire severity. Fire seasons have lengthened by weeks to months in many regions, snowpack melts earlier, and droughts are more intense.

**More ignitions, closer to people.** The overwhelming majority of wildfires near populated areas are human-caused — power lines, vehicles, equipment, discarded material and arson. Expansion of housing into the **wildland-urban interface** puts more ignition sources into flammable landscapes and more property in the path.

**Other contributors:** invasive grasses that cure early and burn readily, converting shrubland to a more frequent fire cycle; tree mortality from drought and insects; and in some regions the conversion of diverse forest to uniform plantation.

**Why the fires themselves behave differently.** Extreme fires generate their own weather — **pyrocumulonimbus** clouds producing lightning and erratic winds — making them essentially uncontrollable until conditions change. Suppression resources are overwhelmed when many large fires burn simultaneously.

**What actually reduces risk:** prescribed burning and fuel management at landscape scale; defensible space and ignition-resistant construction, which evidence shows matters more for home survival than nearby vegetation alone; utility infrastructure hardening and shutoffs; land-use planning; and early detection.

**Smoke** is a major and under-counted health impact, travelling thousands of kilometres.

Question 2

What is the difference between climate mitigation and adaptation?

Accepted Answer

Mitigation reduces the cause. Adaptation reduces the harm. Both are necessary, and treating them as alternatives is a mistake that has cost real time. Mitigation means limiting climate change itself

Question 3

Is incineration better or worse than landfill?

Accepted Answer

Generally better than landfill for the same waste, and worse than not producing the waste at all — which sounds like a dodge and is the actual finding of most life cycle assessments. Where landfill

Question 4

What are the main causes of climate change and how do they affect the environment?

Accepted Answer

Climate change is caused by human activities like burning fossil fuels, deforestation, and agriculture, leading to rising temperatures, extreme weather, and ocean acidification.

Question 5

How much of climate change comes from food and farming?

Accepted Answer

Roughly a quarter to a third of global greenhouse gas emissions depending on what is counted — and the distinctive feature is that these emissions are mostly not carbon dioxide from burning fuel,

Question 6

How to reduce deforestation impact?

Accepted Answer

Reducing deforestation impact involves supporting sustainable practices, engaging in reforestation, and advocating for policy changes. Each method contributes to forest preservation and biodiversity.

Question 7

What actually drives deforestation?

Accepted Answer

Agriculture, overwhelmingly — and the specific drivers differ by region in ways that matter for what would actually stop it. The proportions. Analyses of tropical deforestation consistently find

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