Indoor air in smog season: what actually lowers PM2.5 inside a home
Delhi's air began October at its worst level in four years. Here is what reduces fine particles indoors, ranked by how much it helps.
2 October 2026 · 9 min

Pillar
Home energy, insulation, water and travel decisions worked through with real numbers instead of vague promises.
Energy choices are where good intentions meet arithmetic. This hub walks through draught-proofing, heating settings, appliance running costs and small-scale solar with the actual figures behind them, so you can see which changes are worth a weekend and which are worth a loan.
Articles
Delhi's air began October at its worst level in four years. Here is what reduces fine particles indoors, ranked by how much it helps.
2 October 2026 · 9 min
Crop fires get the headlines, but weather, traffic, dust and festivals all stack up. Here is how the season builds, and the parts that are ours.
2 October 2026 · 8 min
World leaders meet for the COP17 biodiversity summit from 19 October. A few pots, chosen well, give insects and birds a real stopping point.
2 October 2026 · 8 min
No garden needed. These pot-friendly plants give pollinators nectar through most of the year in Indian conditions.
2 October 2026 · 7 min
Burning leaves adds smoke just as the air gets worse. Composting them makes free, rich soil food instead.
2 October 2026 · 7 min
Green crackers promise less pollution, but they still pollute, and rules change every year. Here is what to know before Diwali.
2 October 2026 · 8 min
Travel, food, shopping and lights all add up during the festive season. A few choices matter far more than the rest.
2 October 2026 · 8 min
The UN climate summit runs from 9 to 20 November in Türkiye. Here is what is being negotiated, in plain language, and why it reaches your home.
2 October 2026 · 9 min
Moving cooking, heating and transport from fuels to electricity is a major theme of this year's climate talks. Here is what it looks like in a home.
2 October 2026 · 8 min
Chhath honours the sun at riverbanks and ponds. Here is how families keep the rituals while protecting the water they gather beside.
2 October 2026 · 7 min
Solar water heaters work in winter, but less well on foggy days. Here is what to expect and how to size one sensibly.
2 October 2026 · 8 min
Cold nights, fog and short days change what a balcony garden needs. Here is how to protect plants and keep something growing through winter.
2 October 2026 · 7 min
What we sealed, what it cost, and the thermal readings before and after — with the two jobs we'd skip next time.
27 July 2026 · 11 min
Balcony panels, plug-in kits and payback periods, worked through for three realistic household sizes.
29 June 2026 · 12 min
Not everyone can afford insulation upgrades. These lower-cost changes still made a measurable difference to our energy bill.
23 February 2026 · 8 min
Most water-saving advice feels like a sacrifice. These changes reduced our usage without changing how showers or washing-up actually felt.
16 February 2026 · 6 min
Renting limits what you can plant permanently. Here's what actually grew well in containers on a north-facing balcony.
9 February 2026 · 7 min
A one-weekend checklist for tightening up a home's energy efficiency before the cold sets in, based on what we actually did.
2 February 2026 · 8 min
Carbon footprint calculators give confusing, inconsistent numbers. We compared several and worked out what's actually worth tracking.
26 January 2026 · 9 min
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The Sunday note
No sponsored links, no shopping hauls. Just what we tested this week, what failed, and the numbers behind it.
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