In a report requested by United Nations climate summit leaders, the WHO outlines the economic benefits of improved health are more than double the costs of cutting emissions, and even higher in India and China, which are plagued by toxic air.
"With this year's growth in emissions, it looks like the peak is not yet in sight".
The studies concluded that this year the world would spew 40.9 billion tons of carbon dioxide, up from 39.8 billion tons last year.
With negotiators of over 190 countries brainstorming in Poland on how to move on low carbon growth path under Paris Agreement, US President Donald Trump's remarks against the global climate deal sent a worrying signal - specifically when a new projection sees rise in CO2 emissions by 2.7% in 2018 mainly due to sustained growth in oil and gas use. This reverses a trend from 2014 until 2016, when global Carbon dioxide emissions leveled off after decades of growth.
Study lead author Corinne Le Quere, a climate change researcher at the University of East Anglia in England, said the increase is a surprising "reality check" after a few years of smaller emission increases. Emissions in the U.S. account for almost 15% of the global total and look set to have grown by about 2.5% in 2018 as compared to a year ago.
"There's a lot of politicians who talk about all these things that they want to do, and all the long-term goals and all the strategies that they have, but in terms of action, we're just not seeing it", Clausen told the Associated Press news agency on the sidelines of the talks in Poland's Katowice.
Rapid deployment of solar and wind power, along with gains in energy efficiency, have been outpaced by growth in demand for freight, personal transport, shipping, and aviation, the research showed. "His administration is, therefore, emerging as the most destructive force to achieve a meaningful global collaboration to fight climate change", said Chandra Bhushan, deputy director general of Centre for Science and Environment (CSE).
Alabama's Tua Tagovailoa facing ankle surgery
Players were in shorts and their white jerseys, the color the team will wear during Saturday's game (3 p.m. Alabama will be in the semifinals and is expected to play in the Cotton Bowl.
Andrew Jones of Climate Interactive, which models greenhouse gas emissions and temperatures but was not part of the research, said "this is awful news".
For the USA, it was a combination of a hot summer and cold winter that required more electricity use for heating and cooling.
"I am glad that my friend Emmanuel Macron and the protesters in Paris have agreed with the conclusion I reached two years ago".
The UN Intergovernmental Panel on Climate Change (IPCC) has said that Carbon dioxide emissions must drop 50% by 2030 - and reach "net zero", with no additional leakage into the atmosphere - by 2050 if the rise in Earth's temperature is to be checked at the safer limit of 1.5C.
He argued during a panel discussion that "this is evidenced by the results we have achieved in reducing emissions, in particular through increasing the forest cover and by supporting global climate negotiations".
The year 2018 will be second consecutive year of carbon emission growth after reporting a three-year hiatus (2014-16).
Trying to bring down carbon emissions from human activity is a central goal of the Paris Agreement due to the acknowledgement by experts this is what accelerates climate change, according to CNN. Though China's per capita emission is higher than the global per capita emission, India's per capita carbon footprint is much below the global average.