In addition to worsening climate change, in what other ways do human thoughts harm Gaia?

Human thought has effects on mostly living species more so than other aspects of the earth and its environment. There is consciousness in everything, so thoughts can impinge everywhere and leave a mark, in a sense, or alter things to some degree. The energies, being thoughts alone, will not have great influence on those things of low vibration that you perceive as physical matter because they are much too weak. Thoughts are more effective in manipulating living systems because there are many functioning pathways within a living organism that can be perturbed with small amounts of energy to tip them out of balance, or to create certain responses, and then they will happen. People can drive away living things. This is readily observed as people enter a wilderness area and see nothing alive whatsoever, but yet when people become used to being in that environment and become in tune with Gaia, mostly by relaxing, letting go of inner turmoil, and standing down from any selfish agenda regarding the earth and the nature on display, Gaia will relax as well, and then life will seem to go on once again—the birds will sing, and various other creatures will come and go, and be spotted as long as the person does not make a ruckus. That is a change in the energy being exchanged and is quite a real phenomenon. So when people have energetic discord because their thoughts are discordant, it is perceived by the environment and there will be a response of some kind, mostly one of attempted avoidance if that is possible. When surrounded by human negativity, there can be more dire consequences to create discord within the environment and then things will suffer. It can interfere with growth, with reproduction, and planful activities necessary for long-term survival if the human negativity is too distracting. The recoil of other living things from the onslaught of human thought that is negative can be a major distraction, and delays taking care of things that are needed to keep animals going and provide for their food and shelter, so there may be loss of life as a direct consequence of too much infringement by negative thoughts of human beings.