Roger Federer defends Greta Thunberg criticism by his sponsors - The tennis player has been targeted by environmentalists for receiving sponsorship from a company that invests in fossil fuels.

Pressured this week by climate activists, including Greta Thunberg, to break his ties with Credit Suisse for the investment of this bank in fossil fuels, Swiss tennis player Roger Federer published a statement in which he says "take yourself very seriously" fight against climate change.

"I take the impact and threats of climate change very seriously, especially now that my family and I have arrived in an Australia ravaged by fires," said the sportsman who disputes as of January 20 the Australian Open in Melbourne.

The current number three in the world reacted to the pressures that have resurfaced this week to break its advertising and commercial relationship with Credit Suisse, one of the main banks in its country accused of investing tens of millions of dollars in industries that are harmful to the environment. environment".

Roger Federer defends Greta Thunberg criticism

The pressure has increased as a result of the start of a trial of 12 activists in Switzerland this week who protested at a Credit Suisse headquarters in Lausanne dressed as tennis players to call Federer's attention and denounce the bank's practices.

Thunberg, who will travel to Switzerland next week to participate in a demonstration in Lausanne shortly before traveling to the Davos Forum, retweeted a message from the 350.org account in which he shows support to those prosecuted activists and asks Federer if he agrees with the policies of Credit Suisse.

The tennis player replied in his statement that the youth movement for the weather (of which the Swedish teenager is the best known face) produces great "respect and admiration" and thanks him for "pressuring us all to rethink our behavior and let's look for innovative solutions. "

Ocean absorbed the heat of 3.6 billion Hiroshima bombs in 25 years

Global warming "is real and is getting worse," said the co-author of the St. Thomas University study.

In the last 25 years, the oceans have absorbed heat equivalent to the explosion of 3,600 million bombs like Hiroshima, according to a study published by Advances in Atmospheric Science.

In addition, during 2019 the temperature of the oceans was the warmest since there are records, according to the study, which warns that it is not only increasing but also accelerating.

The text, signed by 14 scientists from eleven institutes around the world, indicates that warmer temperatures have occurred between the surface and 2,000 meters deep.

In the chapter of records, the work also indicates that the last decade has been the warmest in terms of ocean temperatures, especially the last five years.

The temperature of the ocean, during the past year, was about 0.075 degrees Celsius, above the measure recorded in the period from 1981 to 2010, says a statement from the Institute of Atmospheric Physics of the Chinese Academy of Sciences.

Experts explained that to reach that maximum temperature the oceans have had to absorb billions of joules of heat, specifically 228 sextillions.

To give an idea of ​​what that figure represents, "the amount of heat we have put into the world's oceans over the past 25 years equals 3,600 million explosions of atomic bombs such as Hiroshima," said the lead author of the article and Professor of the International Center for Climate and Environmental Sciences of China, Lijing Cheng.

The expert said that this measurement of ocean warming "is irrefutable and further proof of global warming"; To explain this warming, the author points out that there are no "reasonable alternatives" beyond human gas emissions.

The researchers used a relatively new method of analysis that allowed them to examine the heat trends of the past 50 years and the study also includes changes in temperature in the oceans recorded by the National Oceanic and Atmospheric Administration (Noaa) of the United States.

"The two independent data sets indicate that the last five years have been the warmest that have been recorded for global ocean temperatures," the note adds.

Global warming "is real and is getting worse" and this is only "the tip of the iceberg of what is to come. Fortunately we can do something: we can use energy more wisely and diversify our energy sources. We have the power to reduce this problem, "said study co-author John Abraham of the American University of St. Thomas.

The researchers noted that work can be done to reverse the effect of human activity on the climate, but "it will take longer for the ocean to respond.