Bài Mẫu IELTS Task 2: Đánh Thuế Phát Thải Carbon Cao Hay Trợ Giá Năng Lượng Sạch? (Band 8.0)

Confronted with accelerating climate change, many economists advocate steep taxation on coal, oil, and gas as the primary lever for cutting greenhouse gas emissions. While I agree that carbon pricing is an indispensable fiscal tool for discouraging industrial pollution, I disagree that it represents the single most effective measure on its own; meaningful decarbonization requires pairing fuel levies with large-scale investment in clean energy and public infrastructure.

Undeniably, taxing fossil fuels sends a powerful price signal across the economy. When carbon emissions carry little or no financial penalty, manufacturing plants, airlines, and power utilities lack urgency to abandon cheap, polluting fuels. By raising levies per tonne of carbon emitted, governments compel corporations to internalize environmental externalities, making energy-efficiency upgrades and cleaner production methods commercially attractive. In countries such as Sweden and the United Kingdom, sustained carbon pricing has demonstrably accelerated the phase-out of coal-fired power generation.

Nevertheless, relying on punitive taxation as a standalone panacea is both economically flawed and socially inequitable. Household demand for heating and daily commuting is largely inelastic when affordable clean alternatives do not yet exist. Were governments to hike petrol and electricity duties without expanding electrified rail networks, EV charging corridors, and solar or wind capacity, ordinary citizens could not simply stop travelling to work; instead, steep levies would impose a regressive cost-of-living burden on rural and low-income families while triggering public backlash. Consequently, supply-side policies — including subsidies for renewable grids, battery storage research, and strict building insulation standards — are equally vital so that consumers and firms have viable green options to adopt.

In conclusion, although heavy fossil-fuel taxes play a crucial role in penalizing carbon-intensive practices, they cannot single-handedly resolve the climate crisis. Emission reductions are maximized only when governments recycle carbon tax revenues directly into accessible renewable energy and sustainable public transport.