A recent study conducted by researchers at NASA and the National Science Foundation proves World’s lakes have alarmingly warm temperatures. Researchers worry that rising temperatures could cause significant changes in lake faunas and floras.
According to Simon Hook, the co-author of the current study, this is the largest research to have been conducted in the past decades on lake temperatures. The research included 235 lakes from all the six continents of the world. The temperatures of the lakes have been monitored for a period of 25 years and figures have revealed scientists that temperatures are alarmingly higher now than they used to be in the past.
The average temperature rise was set at .61 degrees Fahrenheit. Lake Tahoe (+.97 F), Lake Washington from Seattle (+.49 F), the Dead Sea (+1.13 F) and Superior (+2.09 F) were just some of the lakes that researchers have enumerated to prove that water temperatures are rising all over the globe.
The temperature growth of .61 degrees Fahrenheit and 0.34 degrees Celsius, respectively, was set to be the average rise that lakes registered every decade. If these growing trends are continued, the results could be devastating for fish species within these lakes.
Researchers have explained that increasing lake temperatures lead to algal blooms. The more algae lakes have, the lower the percentage of oxygen becomes. Fish species and water bacteria need oxygen to survive. Without it, many lake species could become extinct in the next 100 years, depriving African regions of their main source of food.
Given the recent findings, Hook believes the world has come to the point where new environmental rules have to be imposed to prevent the melting of ice covers on northern lakes and the warming of water temperatures.
Scientists have concluded that this is the most accurate study that has been performed in the past years. Investigators have used both satellite and hand measurements to get a clear picture of how warm temperatures have become in the past decades.
Satellite measurements were used for surface temperatures, whereas hand measurements allowed scientists to record degrees at lower levels.
The findings of the current study were detailed in the journal of Geophysical Research Letters. Figures were first presented during last week’s American Geophysical Union meeting in San Francisco.
Image source: www.pixabay.com