As per reports, global investments in energy efficiency such as heat pumps and building insulation will increase 16 per cent this year to $560 billion. In 2022, the global economy used energy 2 per cent more efficiently than it did in 2021, a rate of improvement almost four times that of the past two years, and almost double the rate of the past five years. Progress towards energy efficiency has accelerated globally this year as a result of high energy prices and disruptions to fuel supply but it is still not enough to meet climate change targets, the International Energy Agency (IEA). The report suggests post the uncertainties faced due to the Russia Ukraine war, it is stressed that more efficient use of energy is the first and best response. Also, keeping the aim to reach net zero emissions.