do human beings contribute in any way to these changes?
Yes, human activity has caused climate change is not disputed by any scientific body of national or international standing.
Climate change
That human activity has caused climate change is not disputed by any scientific body of national or international standing. 
when did voyager 1 leave our solar system August 25, 2012 what was its mission or destination? Part of the Voyager program to study the outer Solar System, also the probe's objectives included flybys of Jupiter, Saturn, and Saturn's largest moon, Titan. what mode of communication did they use? The radio communication system who were some of the scientists behind this mission? UNANSWERABLE which is the space research organization that launched it? NASA have they launched missions to any of our neighboring planets? Yes, to Mars when did this take place? UNANSWERABLE do they do any other kind of research related to environment? Yes, NASA also researches and publishes on climate change what is the major concern with temperature in this phenomenon? Rising temperatures are limiting ocean productivity and harming fish stocks in most parts of the globe, Surface temperature rise is greatest in the Arctic, where it has contributed to melting permafrost, and the retreat of glaciers and sea ice.
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Climate change [SEP] Introduction
Climate change includes both the global warming driven by human emissions of greenhouse gases, and the resulting large-scale shifts in weather patterns. Though there have been previous periods of climatic change, since the mid-20th century the rate of human impact on Earth's climate system and the global scale of that impact have been unprecedented. That human activity has caused climate change is not disputed by any scientific body of national or international standing. The largest driver has been the emission of greenhouse gases, of which more than 90% are carbon dioxide () and methane. Fossil fuel burning for energy consumption is the main source of these emissions, with additional contributions from agriculture, deforestation, and industrial processes.