The world precipitation rate is the average amount of water (rain, snow, sleet, or hail) that falls from the atmosphere back to Earth, measured across the planet over a given time (per year, per day, or per hour). It can be expressed as: Total volume of water (in km³ per year) Depth equivalent (in mm/year over Earth’s surface) Rate (e.g., mm/day or mm/hour when averaged) 1. Global Average Annual Rainfall On average, about 505,000 km³ of water falls as precipitation each year: 398,000 km³ over oceans 107,000 km³ over land (Wikipedia – Precipitation) This translates to an average global precipitation of: ~990 mm per year across Earth’s surface ~715 mm/year over land only Alternative estimates put the figure slightly lower at ~954 mm/year (~486,000 km³ total precipitation) (Wikipedia – Earth Rainfall Climatology) Converting to a Rate 990 mm/year ≈ 2.71 mm/day ≈ 0.11 mm/hour 954...
Tropical islands near India—Andaman, Lakshadweep, Maldives, Sri Lanka, and Seychelles—face climate threats like sea-level rise and coral bleaching. They promote eco-tourism through protected zones, plastic bans, and sustainable resorts. Popular adventure activities include diving, snorkeling, kayaking, and rainforest trekking, offering nature-based experiences while supporting conservation and local communities. Ideal travel seasons vary by monsoon patterns. Tropical Islands Near India – Climate & Eco-Tourism Summary Island/Region Avg. Temp (°C) Climate Impact Eco-Tourism Practices Top Adventure Activities Andaman & Nicobar 23–31 Coral bleaching, cyclone frequency Permits, tribal reserve protection, solar use Scuba diving, mangrove kayaking, caving Lakshadweep 25–32 Rising sea level, coral stress Permit-based tourism, reef conser...