Greenpeace has urged India to ban incandescent light bulbs and switch to more energy efficient lighting options in order to reduce greenhouse gas emissions by four percent. India is currently one of the top five polluters in the world, along with the United States, China, Russia, and Japan, and experts predict that its carbon emissions will triple by 2050 due to rapid economic development and population growth. Greenpeace's climate change campaigner emphasized the importance of India improving its energy efficiency in light of these projections. One method to address this issue is by replacing incandescent bulbs with compact fluorescent lights (CFLs), which consume less energy and can reduce emissions by four percent. If greenhouse gas emissions are not controlled, temperatures could rise by 1.8 to 4.0 degrees Celsius (3.2 to 7.8 Fahrenheit) in the 21st century. The Indian subcontinent is predicted to be severely impacted by global warming, leading to increased natural disasters, diseases, and hunger. Despite being more expensive than traditional incandescent bulbs, CFLs use 80 percent less energy and can result in cost savings for households and industries. Around 20 percent of electricity in India is used for lighting, and switching to CFLs could help meet the country's growing power demands. In February, Australia made a groundbreaking announcement that it would become the first country to ban light bulbs, with plans to phase them out within three years. Despite this initiative, environmentalists are worried about the mercury content in CFLs, warning that their disposal could pose serious health hazards due to the toxicity of the heavy metal. Globally, the demand for CFLs is still limited, making up only 10 percent of the market share for light sources. Greenpeace reported that India uses a significantly higher number of incandescent light bulbs, with 640 million used annually compared to just 12 million CFLs.