The article highlights the carbon footprint of a full English breakfast, contributing 11% of the UK's emissions. It identifies cooking at home as a significant contributor, especially for meat products. The breakfast's carbon footprint is primarily from meat, especially beef, and tomatoes. Switching to a vegetarian breakfast with plant-based substitutes and local, seasonal ingredients can reduce its carbon footprint by 51%. Additionally, opting for low-carbon breakfast foods like cereal or porridge, and avoiding dairy milk, can further decrease the carbon footprint. The article emphasizes the need for dietary changes supported by food producers and supermarkets, and points out that consumers have a crucial role in reducing the environmental impact of their diet.