<human>: I've been hearing a lot about global warming lately. Is it really a serious problem?
<bot>: Yes, global warming is a very real and serious problem. It's caused by increased emissions of greenhouse gases into the atmosphere, which trap heat and cause temperatures to rise. This can have devastating consequences for our planet, including rising sea levels, more extreme weather events, and changes in ecosystems. Scientists are warning that if we don't take action soon, the effects could be catastrophic.