From odd-even to cloud seeding: Why Delhi's pollution battle remains unfinished - The Times of India

Delhi has tried several measures to curb its notorious winter smog, beginning with the odd‑even vehicle restriction that limited private cars with odd or even registration numbers on alternate days. While the scheme reduced traffic volume temporarily, air quality monitors recorded only modest improvements, and the rule was lifted after a few weeks due to public inconvenience. More recently, the municipal corporation has experimented with cloud‑seeding flights that disperse silver iodide particles in an effort to induce rain and wash away pollutants.

In addition to these short‑term tactics, authorities have promoted the use of cleaner fuels, expanded the network of electric buses and imposed stricter limits on construction dust. However, experts point out that Delhi’s geography, combined with crop‑burning in neighboring states and low wind speeds, creates conditions that are difficult to overcome with isolated actions. The city’s pollution problem therefore remains a complex mix of local emissions, regional agricultural practices and seasonal weather patterns.

For residents of the capital and for Indians living in other polluted cities, the ongoing struggle highlights the need for coordinated policy across state lines and for sustained investment in sustainable transport and renewable energy. The mixed results of odd‑even rules and cloud‑seeding experiments suggest that a single quick fix is unlikely to solve the problem, and that long‑term planning, public awareness and regional cooperation will be essential to achieve cleaner air for future generations.