That's a pretty global statement.
That's just it, they haven't been suspended. But to be clear, Man is not 'other causes'. Man has always been part of the equation.
Your criteria is extreme. It's not necessary for such to be occurring for humanity to be impacting climate.
But there is. We impact the environment. We have known that for most of humanity's intellectual life, and even before that. We know that about animals, as well. The most recent (famous) example is demonstrated by the reintroduction of wolves into the Yellowstone.
Archaeologists and Anthropologists deal in great depth in their studies with the changes wrought by Man as they travel across vernal grasslands as migrating tribes or cut down virgin forest to clear land for farming.
Rain and draught are functions of what Man does with the land as vividly demonstrated with the Dust Bowl in the 1930's USA.
Incidentally, Man has historically fouled his environment. We see it amongst nomadic tribesman - they have to leave areas to allow those areas to recover. We see it in the archaeological record. We see it as villages are moved when the midden/garbage heap gets too large.
The Cedars of Lebanon - they existed. Man cut them down leaving a different ecosystem, and weather pattern.
Man's cities are notorious for creating their own weather patterns - the humidity of Phoenix:
"places that once had a dry atmosphere, like Phoenix, have now become humid due to the preponderance of swimming pools, well-groomed golf courses with sprinkler systems and fancy malls with spouting fountains."
The wind and weather of the 'canyons' of Chicago -
Climate of Chicago - Description and Normals
LINK:
Climate of Chicago - Description, Illinois State Climatologist Office, Illinois State Water Survey, U of I
TEXT:
"The first local feature is the urban climate in the Chicago metropolitan area. Buildings, parking lots, roads, and industrial activities make the urban climate noticeably different than that of surrounding rural areas. For example, Chicago tends to be warmer by 2°F, on average, especially at night. In some cases, this difference can be higher. This particle feature of the urban climate is usually called the "urban heat island effect". Urban areas also cause changes in humidity, cloudiness, wind speeds and directions. Not only do the built up areas cause warmer temperatures but they also increase the runoff of rainwater, leading to increased flooding."
That sounds like a strongly held belief. Observation - scientific observation - suggests something else but one has to be open to looking at the evidence and accepting the scientific method of research. If the scientific method is suspect for you then this dialog will be incomprehensible.
There is no 'blame', it is simply a fact that man has always been a player in the ecosystem he is living within. It is only since the advent of the Industrial Revolution that Man's impact began to be
obviously global - that is what the evidence points to. However, to be able to see that, one must be able to read and interpret the data in a rigorously scientific way.
Truth? 
