“EPA’s proposal relies on proven, readily available technologies to limit carbon pollution and seizes the momentum already underway in the power sector to move toward a cleaner future. “By proposing new standards for fossil fuel-fired power plants, EPA is delivering on its mission to reduce harmful pollution that threatens people’s health and wellbeing,” said EPA Administrator Michael S. more than 300,000 cases of asthma attacks.more than 800 hospital and emergency room visits.In 2030 alone, the proposed standards would prevent: The proposals would also result in cutting tens of thousands of tons of particulate matter (PM2.5), sulfur dioxide, and nitrogen oxide, harmful air pollutants that are known to endanger people’s health, especially in communities that for too long have disproportionally shouldered the burden of high pollution and environmental injustice. Through 2042, EPA estimates the net climate and health benefits of the standards on new gas and existing coal-fired power plants are up to $85 billion. The proposal for coal and new natural gas power plants would avoid up to 617 million metric tons of total carbon dioxide (CO 2) through 2042, which is equivalent to reducing the annual emissions of 137 million passenger vehicles, roughly half the cars in the United States. Environmental Protection Agency (EPA) proposed new carbon pollution standards for coal and natural gas-fired power plants that will protect public health, reduce harmful pollutants and deliver up to $85 billion in climate and public health benefits over the next two decades. This function doesn’t have a second argument – it’s programmed to return the right week number according to the ISO standard.Īs you can see, the old WEEKNUM function is risky, and there is no reason to use it anymore.( – Today, the U.S. If you forget the second argument in the formula, Excel will assume that you want option 1.įinally, in Excel 2013, Microsoft introduced a new function: ISOWEEKNUM. The ISO system is commonly known as the European week numbering system, and since week numbers are used a lot in Europe, the old and confusing WEEKNUM function, where you have to choose return type 21, has caused countless errors in a large number of companies and governments across Europe. – Return type 21 was introduced in Excel 2010, and this is the official ISO Week Date System where the week starts on Monday and the week containing the first Thursday of the year is considered week 1. With option 1, the week begins on a Sunday, with option 2 the week begins on Monday, option 11 is Tuesday, 12 is Wednesday, etc. – The return types 1, 2, 11, 12, 13, 14, 15, 16 and 17 are all based on the rule that the week of January 1st is week 1. The old WEEKNUM function has 8 options for return type in its second argument: The week numbers on the picture above are calculated according to the official ISO standard, where the week starts on a Monday and the week containing the first Thursday of the year is considered week 1. This is the default definition if you use the WEEKNUM function in Excel In that case, week number 1 would only have one day in 2022, because January 1st is a Saturday, and the week number changes on Sunday, January 2nd. According to one definition, January 1st would always be in Week number 1, and then the week number changes every Sunday. There are different ways to define the week number of a specific date.
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