Enpresarien interesak batetik, pobreen antzutzea bestetik, politikarien ezaxola, eta abar, guk gurean, etor litekeen etorkizunean, geure inguruan etorkin gehiagorekin bizi behar izatea, saihestezina dirudi. Eliteek egiten diguten hil arteko gerra bistatik galarazi ere egiten ahal digu. Etsaia zein den.

Izatez, hidrogenoa ez da energia-iturria, baizik eta energia-bektorea (energia biltzeko eta askatzeko substantzia).

The ABAR model in this study reflects recent industrial autonomous farming robots29,30, but is intended as a simplified, parameterized representation rather than a one-to-one model of any specific product (Fig. 2). Its dimensions (0.85 meters (m) × 0.70 m × 0.70 m; Length × Width × Height) are based on an existing compact ABAR platform29 to anchor the geometry, while the included components, their sizing, and the operational parameterization were defined for this study based on the assumptions described in “Methods”. The robot runs on wheels and incorporates a battery-electric drivetrain sized for high-power operations such as field preparation. Onboard perception and positioning are provided by a camera, global positioning system (GPS), and lidar (light detection and ranging), with embedded computing, enabling autonomous control. The robot’s weight is 200 kilograms (kg), excluding task-specific tools and ballast. The model is structured so that alternative ABAR designs can be evaluated by substituting platform parameters such as working width, component masses, battery capacity, and task speeds. To estimate task-level emissions and costs more accurately, the required tools are represented by simplified proxies. Where appropriate, these are scaled to the robot’s geometry and informed by existing technologies. They include a proxy for soil preparation,...

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